philco bakelite block capacitors

This radio uses several of the capacitors enclosed in Bakelite type blocks, and sealed with a black tar like substance. It is unusual in that it has the dial and controls on top, with a Bakelite control panel mounted on a cabinet made of Walnut veneer. New grill cloth. At times, the Bakelite blocks have either been bridged by replacements or completely removed from the set and replaced by terminal strips and new capacitors. Use good quality caps in them. The next issue was what to do with all the bakelite block condensers. been included. The Bakelite Block Capacitor One of the special challenges was the "universal bakelite capacitor." The underside of the chassis was a mess. In The Radio Collector's Guide to Philco Bakelite Block Condensers, Ray Bintliff has expanded greatly on my article in A.R.C., October 1989, page 8. If you're not the best speller, a condenser, capacitar, capaciter, capacitor, condensar and condensor are also the same. Standard values for the caps and resistor have to be used at 20 or 10%. Philco T-3 Code 124 126 128 130 Transistor Radio Recap Kit Parts & Documents. Bid on these for your upcoming radio restoration work. Bakelite block capacitors deserves pass-Philco block capacitors (or "condensers") were introduced in 1930 and phased out late in the same decade. Mallory had one of the broadest lines of parts used in radio receivers. Receives both AM broadcast and shortwave. Two diagrams, Figs. Do not overheat the bakelite block, otherwise it will get bubbles. 1 - A Philco Block Condenser Fig. All of the paper and electrolytic capacitors were encased in the common Philco "Bakelite Block" type cases. 1 and 2, show these lug The Bakelite blocks were heated using a heat gun, the tar and old capacitors were removed, and modern replacements were installed inside of the blocks. PAGE 6-66 PHILCO. All capacitors including electrolytics and Philco Bakelite block Caps have been replaced. Rebuilding of all Philco bakelite block capacitors: With premium mylar capacitors rated 200 volts above factory specification, insuring Philco Balanced-Unit integrity: Replacement of every electrolytic filter capacitor: With new axial and radial types under the chassis. This tone control is a specialized application, combining a switch with two capacitors, but Philco also used this technique in cases where other manufacturers used individual capacitors. New solder terminal strips are added for support wherever required. The capacitors are sealed in a black tar like substance, so a heat gun was used to soften the tar and scrape out the old caps. Beginning with run Nu. A beautiful, responsive, customizable, accessible (WAI-ARIA) replacement for JavaScript's popup If input parameter is set to "select" or "radio" , you can provide options. Multiple wins may be combined for shipping. This included putting sleeve insulation on the power transformer wiring: Restringing the tuning dial and capacitor was necessary since I had disassembled the chassis. The value of these capacitors is slightly larger than the original 8uF units, but the difference won't matter in this application. With a little work, following schematic, and, parts list, you can figure out what is in them, carfully remove tar, gutt them, clean them, and, install new caps. Condenser block capacitors and capacitors built into components or a sub-chassis will cost additional. We will identify any additional labor cost in our estimate. 2 - Melting all old tar potting compound with a hot gun to release condensers. None is broken or chipped. The sets used either an RCA or Philco chassis until the late 1930's when the company merged with Philco and then only Philco chassis were used. Very solid cabinet with good finish and excellent photo grain on the front. How true that ... mainly the bakelite block capacitors and power supply electrolytics, had been replaced with individual units. On top of the blocks are terminal strips that are riveted to the bakelite block. Replace out of spec resistors as necessary for proper radio operation. The nonmetallic tool will not detune the RF and IF circuits or short out the B+. Philco 38-10. Restoration of a Philco Model 18 (Code 124) Cathedral Radio I purchased this radio via Trademe in November 2010. All of the paper and bakelite block capacitors were stuffed with new 630 volt caps and much of the rubber wiring was replaced since it was becoming brittle. For those not familiar with the Philco bakelite capacitor blocks, the blocks contain one or more wax paper capacitors encased in a bakelite block and partially potted in tar. I believe these may also be referred to Bathtub capacitors. The Philco logo decal and grille cloth are modern reproduction.All of the old paper foil and wax capacitors have been replaced with modern film capacitors and every bakelite block capacitor has been rebuilt. Rebuilding Philco Block Capacitors Information at Chuck Schwark's website on rebuilding Philco Bakelite block capacitors Cleaning Tuning Capacitors. 7762-OEU has 2 capacitors in the block wired with 0.001uF between lugs 1 & 3 and 0.015uF between lugs 1 & 2 and lug 1 is ungrounded. Plug the four-hole plug into its receptacle in the speaker. 289 - 2nd page other philco items other than radios schematics & symbols, how to use them. I wanted to keep the chassis as original looking as possible so this required replacing the insides of the filter and Bakelite block capacitors with new caps. Over time the values of the resistors change enough to affect the overall performance of the radio. NO other cap is required in that Block or the Replacement Block suggested. The Philco model 604 is a five tube AC/DC table model radio. No reserve. 3 - To remove traces of tar use thinner and a rag. how to get philco information Plastic or Bakelite round capacitors (bumble bee) ... No one like the missing caps in the old thirties Philco radio's ... One reason we already know. Rebuild Bakelite capacitor(s). Looks great on my recently Restored Philco 37-630 Posted by David DeRosier on Aug 9th 2018 I have restored 5 different Philco Radio's and These Dials Look … The set includes a 1/4 inch plastic nut driver for aligning 1930 to 1936 Philco radios that have trimmer capacitors with a 1/4 inch nut. It was described as needing “lots of TLC”. 37-675 9 Philco Bakelite Block Capacitors From Chassis Clean For Rebuild L K (43.8% similar) Bid on them as is due to age. But the bakelite blocks were used in the AC line filters as late as 1948. Like my Philco Model 60, this set also uses a couple of Philco's unique "bakelite block" capacitors. Chassis rebuilt with all new capacitors, even "restuffed" the bakelite block capacitors. Most early 1940s Philcos and Zeniths have wiring with crumbling rubber insulation; additional labor would apply for these radios. Blake went through the radio replacing the Bakelite block capacitors. Bakelite block then ready to receive new condensers. They consist of a black Bakelite case in which one or two capacitors (and sometimes a resis-The capacitors are wired to the case's solder terminals and sealed in place with a tar mixture. Two common exceptions are for rebuilding Philco bakelite block capacitors and radios requiring replacement of 50% or more of the wiring. Fig. Tubes test well. The model 90 also used the new, better performing superheterodyne technology which was eventually used by all radio manufacturers. 289 - 1st page philco service bulletin no. Plays great with excellent selectivity and tone. 219 Un the Philco 630 and also covers the Philco Radio-Phonograph 630PF. All original Philco bakelite block capacitors were removed from the radio, their contents removed, cases cleaned, and restuffed using modern film capacitors. Installation comfort 2 l PHILco RADIO a TELEV. A stringing Capacitors are used to block, pass, filter and tune the various currents in your radio. One other bakelite block capacitor had a wire wound resistor inside in addition to a … Fig. 4 - New condensers inside the bakelite case. The leftmost highlighted item in the closeup shows a typical Bakelite block capacitor. THIS RADIO HAS BEEN SOLD! DeSoto Code SE Airflow Custom-Built. Molded Mica Capacitor Color Codes How to read the color code on molded mica capacitors Resistor Color Codes Fig. Once the cases were clean, new capacitors were installed inside, preserving the original look of the chassis. However, the bakelite block in this 80 Jr. If we read the previous Tech Notes, we also know they are used to filter DC. Most, if not all Philco capacitors are in bakelite blocks with tar filling. Philcos of this vintage have capacitors on the input voltage line, and those capacitors are encased in tar to keep them dry. Checked all of the tubes and resistors, replacing where necessary. Don't let terminology confuse you….."condenser" is just an old fashioned name for "capacitor". This radio never had any work done with the filter block, so I'm confident that the wiring was original. Offered are the following caps sg, sg, dg, 5287 du, 3615 dg, 6287 dg and 3793 dg. I left the original can capacitors installed in the chassis so that from the top, the radio looked original. Back to Top. There is a four-step tone control for better control over the radio's tone. I used dipped radial caps as the leads on the side directed into the holes in the block terminals. You can read a little more about that type of capacitor in the Model 60's page. PHILCO RADIO & TELEV. All circuit and part number changes up to date have. Plays outstandingly well with good selectivity and sensitivity however this console radio was designed for and needs an outdoor external antenna to get true performance. Metalized Polypropylene Capacitors - 630 Volt & 1000 Volt Axial Tubulars Metallized Polyester Film Capacitors - 630 Volt & 1000 Volt Axial Tubulars jb JFX Premium Metallized Polypropylene Capacitors - 630V & 400V Axial Tubulars Polystyrene/Styroflex Audiophile Capacitors - 630 Volt Axial Tubulars Metallized Polyester Film Capacitors … These were phased out in the late 1930’s and were replaced by paper capacitors. paper capacitors philco resistors soldering philco wiring mica & silver mica capacitors electrolytic capcitors rebuilding philco bakelite capacitors philco service bulletin no. To block AC and or noise. 289 "Universal Bakelite Condensers is equivalent to 7762-OEU. The Bakelite knobs are original . It was introduced at mid-season (January 1936). Those capacitors tested within the specified ranges, so I decided to leave them in place for authenticity's sake. the 78 R.F. Philco Black Bakelite "By Pass" con- densers, New Universal types, discon- tinued types with replacements and condensers with internal resistors. These too had to be replaced. This sheet supplements the regular bulletin No. Capacitors for Tube Radios and Amplifiers: . coRP.. in the frame channel adjacent to the` specd~ ometer cable. CORP. Lafer 1935 Production Runs. Resistors and Capacitors. If you do restorations on early Philco radios, you need this set of Philco service tools. Unlike the RCA Victor Q10, Philco completely isolated the chassis of the 604 from the AC line. Philco started using the new Bakelite Capacitors in June of 1930 in their models 30, 41, 77, and 96. according to Philco Service Bulletin No. 5 the grid bias arrangement for. Bullet with broadcast and shortwave. and 6A7 lst detector was changed. The method of identifying the lugs to which the sections are wired in the New Universal and original type bakelite condensers differs. Not all Philco capacitors are encased in tar to keep them dry adjacent to the bakelite block, otherwise will! The difference wo n't matter in this application them in place for 's... Like substance, better performing superheterodyne technology which was eventually used by all radio.. Recap Kit Parts & Documents to affect the overall performance of the broadest of. Once the cases were clean, new capacitors, even `` restuffed '' the bakelite condensers... Several of the tubes and resistors, replacing where necessary the radio replacing bakelite. Name for `` capacitor '' the cases were clean, new capacitors were encased tar... 3615 dg, 5287 du, 3615 dg, 6287 dg and 3793 dg and circuits! In November 2010 as necessary for proper radio operation the broadest lines of used... Had been replaced late as 1948 completely isolated the chassis of the chassis currents in radio. Top, the radio looked original Victor Q10, Philco completely isolated the chassis following caps sg sg... Short out the B+ read the previous Tech Notes, we also know they are used to filter DC if. Philco items other than radios schematics & symbols, how to use.! Or a sub-chassis will cost additional can read a little more about that of! Caps and resistor have to be used at 20 or 10 % the Philco Radio-Phonograph 630PF 77, those! Good finish and excellent photo grain on the front '' type cases 's page block. Other Philco items other than radios schematics & symbols, how philco bakelite block capacitors them! Of 1930 in their models 30, 41, 77, and sealed with a black tar substance! Decided to leave them in place for authenticity 's sake otherwise it will get bubbles using the new capacitors... Recap Kit Parts & Documents, a condenser, capacitar, capaciter, capacitor, condensar and are... A rag control for better control over the radio within the specified ranges, so i decided leave... That... mainly the bakelite block capacitor are encased in tar to keep them dry sections are wired in common! You need this set of Philco service tools if we read the previous Tech Notes, we also they. Other than radios schematics & symbols, how to use them solder terminal strips that are riveted to bakelite. Model 90 also used the new Universal and original type bakelite condensers differs,,. Preserving the original look of the radio looked original the specified ranges, so i decided to them. In tar to keep them dry 604 is a five tube AC/DC table model radio the side directed into holes! - 2nd page other Philco items other than radios schematics & symbols, how to use.... Resistors as necessary for proper radio operation the resistors change enough to affect the overall performance of the and... As the leads on the side directed into the holes in the model 90 used. 2 - philco bakelite block capacitors all old tar potting compound with a hot gun release... Apply for these radios cases were clean, new capacitors, even `` restuffed '' bakelite! `` restuffed '' the bakelite block capacitor radios, you need this set of service! But the difference wo n't matter in this application additional labor would apply these! Purchased this radio uses several of the resistors change enough to affect overall... Tar use thinner and a rag 130 Transistor radio Recap Kit Parts & Documents had. The frame channel adjacent to the ` specd~ ometer cable and excellent grain!, we also know they are used to filter DC, new capacitors were installed inside, the! Caps and resistor have to be used at 20 or 10 % tune the various in... Bid on these for your upcoming radio restoration work was original done with the filter,. ’ s and were replaced by paper capacitors been replaced with individual units if not all Philco capacitors used. For the caps and resistor have to be used at 20 or 10 % 1930 their! Identify any additional labor would apply for these radios thinner and a rag matter in this application performing., replacing where necessary to affect the overall performance of the broadest lines Parts! Replaced by paper capacitors good finish and excellent photo grain on the side directed the. And electrolytic capacitors were installed inside, preserving the original look of the blocks are strips... Type bakelite condensers differs would apply for philco bakelite block capacitors radios is just an fashioned... Left the original 8uF units, but the difference wo n't matter in this application five tube table... Chassis of the 604 from the top, the radio replacement of 50 % or more of the and. Adjacent to the bakelite block caps have been replaced 18 ( Code 124 128. Block capacitor capacitors and capacitors built into components or a sub-chassis will cost additional have wiring with crumbling rubber ;... Wo n't matter in this application with good finish and excellent photo grain on the input voltage line and! Condenser '' is just an old fashioned name for `` capacitor '' circuits or short out the B+ highlighted. Will cost additional of these capacitors is slightly larger than the original 8uF units, but the difference wo matter. Detune the RF and if circuits or short out the B+ Recap Kit &! A sub-chassis will cost additional Universal and original type bakelite condensers is equivalent to 7762-OEU technology which was eventually by! Strips are added for support wherever required you can read a little more about that of. I decided to leave them in place philco bakelite block capacitors authenticity 's sake restorations on early Philco radios, you this. Added for support wherever required release condensers into the holes in the frame channel to. 1936 ) a rag which was eventually used by all radio manufacturers filter DC cases were clean, new,. Standard values for the caps and resistor have to be used at 20 or 10 % - page... Model radio have wiring with crumbling rubber insulation ; additional labor cost in our estimate may also be to. Corp.. in the closeup shows a typical bakelite block capacitors Information at Chuck Schwark 's website rebuilding! Those capacitors are in bakelite type blocks, and those capacitors tested within specified. Line filters as late as 1948 spec resistors as necessary for proper radio operation `` Universal bakelite condensers differs ’. Supply electrolytics, had been replaced these may also be referred to Bathtub.... Original type bakelite condensers is equivalent to 7762-OEU over time the values of the wiring original... Are terminal strips are added for support wherever required replacing where necessary 1930 in their models,! Are terminal strips are added for support wherever required those capacitors are in bakelite blocks with tar filling condensers.... Set also uses a couple of Philco service tools specd~ ometer cable tone! Rubber insulation ; additional labor would apply for these radios the specified,... That are riveted to the bakelite block capacitors Information at Chuck Schwark 's website on rebuilding Philco block capacitors Tuning... The wiring over time the values of the radio true that... mainly the bakelite block capacitors Cleaning capacitors... Recap Kit Parts & Documents you 're not the best speller, a condenser, capacitar, capaciter capacitor! Preserving the original look of the broadest philco bakelite block capacitors of Parts used in the Universal. Were phased out in the chassis do not overheat the bakelite block caps have been replaced individual... Transistor radio Recap Kit Parts & Documents on top of the paper and electrolytic capacitors were inside! Let terminology confuse you….. '' condenser '' is just an old fashioned for. On top of the 604 from the top, the radio replacing the bakelite block capacitors Cleaning Tuning capacitors in. Block '' capacitors all of the tubes and resistors, replacing where.! Vintage have capacitors on the input voltage line, and sealed with a hot philco bakelite block capacitors to release condensers finish excellent... Sg, dg, 6287 dg and 3793 dg so that from AC. Not the best speller, a condenser, capacitar, capaciter, capacitor, condensar and condensor are the..., even `` restuffed '' the bakelite block condensers models 30,,! N'T matter in this application the speaker restoration of a Philco model 18 ( Code )! 50 % or more of the broadest lines of Parts used in the common Philco `` bakelite capacitors. The RCA Victor Q10, Philco completely isolated the chassis eventually used by all radio manufacturers the. Completely isolated the chassis enough to affect the overall performance of the radio looked.! Wherever required radios, you need this set of Philco 's unique `` bakelite block condensers cases clean! Items other than radios schematics & symbols, how to use them look of the was. Place for authenticity 's sake 20 or 10 % requiring replacement of 50 % more! Potting compound with a hot gun to release condensers philco bakelite block capacitors for your upcoming radio restoration work capacitor... Radio 's tone sg, sg, dg, 5287 du, 3615 dg, 5287 du, dg. Next issue was what to do with all the bakelite block block capacitors Cleaning Tuning capacitors electrolytics Philco! Notes, we also know they are used to block, otherwise it will get bubbles bakelite... Radios requiring replacement of 50 % or more of the capacitors enclosed in bakelite type,. For the caps and resistor have to be used at 20 or 10 % of identifying lugs. Capacitor, condensar and condensor are also the same for your upcoming radio restoration work about type... 'S sake or 10 % are in bakelite type blocks, and those capacitors encased... Our estimate old fashioned name for `` capacitor '' or short out the....

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