Fisher Custom Electra - E492-CF
Posted: Tue Sep 07, 2021 5:59 pm
After finding this 1967 Fisher on CL curb alert a few years ago, lingered on a cart at the back of my shop for a while but I finally pulled it out, knowing it might be a simple fix and flip. I must downsize and this is one way to do it, low-hanging fruit of easy fixes.
The 21R chassis was dead on the AC side and I traced that to the "automatic shutoff" rocker-slide switch right there on the front panel, barely rated for AC switching duty and next to muting, mono and speaker switches. This switch is used to shut off the amplifier after the last record has played or keep it on until the receiver is turned off. This feature is a hold-over from the tube models when you did not want the amp to shut off after a record has played, keeping tubes warm until you can get up to change records, etc.
The big surprise came when using an ESR tester on all the large-value electrolytic capacitors, mostly German-made ERO - pale yellow overwrap. These indicated low ESR and "in circuit/leaky" and would not display a value. For an ESR tester, the Peak ESR 70 is almost the best I have ever used and is almost never wrong about a cap, which I can check on a standard eye-tube tester that tests at circuit design voltages up to 400v.
I decided to power up this receiver after confirming there are no shorts in power supply or low impedances in both output circuits, much less a blown fuse. No work appeared to be done on this well-built chassis and its confirmed by the large pop-in (auto-dome light style) dial lights were original. I immediately got noise on FM and as it "woke up" began -to receive more stations after I connected the roof antenna. The Dual 1010 record player is a 4-speed version of the 1009, which I am more than familiar with. This needs only an idler wheel, which was so hardened and noisy yet ran at all speeds. The Pickering V15-III cart seemed ok as well as the cartridge head connector, a usual issue with these players.
This is a surprise to work almost with nothing done but a thorough cleaning of pots with DeOxit. Especially since the E-caps were otherwise suspect, it is a bigger surprise its playing for 4 days now at all volumes. The only issue is a loose connection on the mpx decoder board, causing it to drop stereo pilot when tapped. Otherwise it sounds like a good solid state console should. The cabinet is supposed to look like walnut, noted in catalog as "country French" Once the player is ready, I will try to sell this one. Fisher used germanium transistors DTG110, so that is a potential issue of any high-hours console. I have three other Fisher consoles, all of higher caste but this one is the only all-SS Fisher I have worked on besides a '67 Statesman with multiple- issue 31R chassis, parted it out due to the outrageous style cabinet made with lots of particleboard.
The 21R chassis was dead on the AC side and I traced that to the "automatic shutoff" rocker-slide switch right there on the front panel, barely rated for AC switching duty and next to muting, mono and speaker switches. This switch is used to shut off the amplifier after the last record has played or keep it on until the receiver is turned off. This feature is a hold-over from the tube models when you did not want the amp to shut off after a record has played, keeping tubes warm until you can get up to change records, etc.
The big surprise came when using an ESR tester on all the large-value electrolytic capacitors, mostly German-made ERO - pale yellow overwrap. These indicated low ESR and "in circuit/leaky" and would not display a value. For an ESR tester, the Peak ESR 70 is almost the best I have ever used and is almost never wrong about a cap, which I can check on a standard eye-tube tester that tests at circuit design voltages up to 400v.
I decided to power up this receiver after confirming there are no shorts in power supply or low impedances in both output circuits, much less a blown fuse. No work appeared to be done on this well-built chassis and its confirmed by the large pop-in (auto-dome light style) dial lights were original. I immediately got noise on FM and as it "woke up" began -to receive more stations after I connected the roof antenna. The Dual 1010 record player is a 4-speed version of the 1009, which I am more than familiar with. This needs only an idler wheel, which was so hardened and noisy yet ran at all speeds. The Pickering V15-III cart seemed ok as well as the cartridge head connector, a usual issue with these players.
This is a surprise to work almost with nothing done but a thorough cleaning of pots with DeOxit. Especially since the E-caps were otherwise suspect, it is a bigger surprise its playing for 4 days now at all volumes. The only issue is a loose connection on the mpx decoder board, causing it to drop stereo pilot when tapped. Otherwise it sounds like a good solid state console should. The cabinet is supposed to look like walnut, noted in catalog as "country French" Once the player is ready, I will try to sell this one. Fisher used germanium transistors DTG110, so that is a potential issue of any high-hours console. I have three other Fisher consoles, all of higher caste but this one is the only all-SS Fisher I have worked on besides a '67 Statesman with multiple- issue 31R chassis, parted it out due to the outrageous style cabinet made with lots of particleboard.