Hello,
I am repairing and restoring audio equipment as an amateur hobbyist. I like to listen to different audio equipment, so to satisfy my hobby, I prefer to buy equipment in non-working condition and try to fix them, to bring the cost of my hobby to a minimum. I usually circulate my equipment regularly but due to the pandemic, these are piled up and they need to go to open room for more.
The new components were not chosen to be cost sensitive in any of the following equipment, they are rather picked as I would decide to keep that equipment in my system if I like the sound character.
I am more open to trade than cash deals. If you have any equipment which is in need of repair and it is an interesting equipment of it’s era, like the Fisher K-200-C, Sony TA-2000F or the Luxman C-1000 below, I would be more interested in that. I am always on the lookout for a preamplifier to match with my TAN-8550 or Radford STA-25S3 and DACs.
Resellers, who are interested in the complete list, are encouraged, as it will greatly reduce my time to deal with these.
I will, under no circumstances, do shipments. Local pick-up from CA, Redwood City area is the only option.
Fisher 400 – 450$
This is a recapped receiver. Can caps were purchased from CE-Manufacturing. One 40-40-40-40 was taller than the original and it was not replaced. The original was checked at rated voltage with a Heathkit IT-28 and it was found to be not leaky. If the next owner prefers to use this receiver without the wooden case (not included), it can be replaced, as I will include the new CE-Manufacturing can capacitor with this receiver. All the tubes on the amplifier stage have been checked. Some of them have been replaced by either New (Tungsol gold-pin) or NOS tubes. The output tubes were purchased as a matched quad and the small signal amplifier tubes were matched using Hickok 752A tube tester, which allows dual-tube measurements, which is ideal for matching purposes. The eye-tube is also replaced with a brighter, NOS part. The factory schematic was followed during recapping and checking the tolerances of the resistors. The IMD is within factory specs. The bias of the tubes is stable, the voltages are a little higher due to the 110V vs 125V difference however, this does not seem to impact the performance, as there are no over heating components. Needless to say that the lights on the front panel work. The pots and the switches have been cleaned but no alignment has been done on the radio section. Cosmetically it is in good condition, has all the knobs and the brass tips. Installed rubber feet.
Fisher K-200-C – 650$
It comes with the refurbished wooden case and the brass grille. Recapped with Hayseed Hamfest can caps and other branded capacitors. New Tungsol output tubes were bought as a matched quad. Small signal tubes are new/NOS and matched with my Hickok 752A tube tester. The biases of the output tubes were adjusted and the protection modification, which is suggested by the Blue Glow Electronics to protect the output transformers in the case of a tube failure, is implemented. As it is always the case with these, the 110V to 125V mains difference causes the voltages to be higher than what they are supposed to be, but no modification has been implemented to correct for this, to keep the amplifier as original as possible. The IMD is within factory spec, and correct service manual for this amplifier was used to check the tolerances of the resistors and other components. As I haven’t finalized this restoration, pots and switches may require attention. If they are left at their current positions they do not introduce any noise, but may require cleaning if they are going to be operated frequently.
You can find my discussion while restoring this product here: https://www.diyaudio.com/forums/tub...-202-restoration-power-supply-voltages-2.html
One output transformer was refurbished by: Transcendar Transformers - Fisher
Sony TA-2000F – 450$
Completely original preamplifier in perfect working condition. Very flexible and versatile preamplifier for people who have various and challenging sources like low impedance, low output MC cartridges. It works great with my EMT TSD-15 for example. Comes with the DIN cable for tape recorders and I have purchased the recap kit, thinking I may be needing it down the road, however, never ended up replacing the capacitors in the power supply. However, I will include the recap kit with this preamplifier. In good cosmetic condition.
Luxman C-1000 Anniversary – 450$
In original, working condition. Nice sounding preamplifier which has support for different impedance loads for Phono-1 input. Has a Touch Mute function, which mutes the sound when you touch where the sensor is, with your finger, and to unmute, you just need to hold the volume knob. Wooden case has some scratches, other than that, good overall cosmetic condition.
PS Audio 5.0 – 150$
In working condition. I had to replace the RCA connectors at the back, most probably the previous owner used heavy interconnects and most connectors were suffering from brittle plastics and they were not applying enough pressure to hold the connectors in place. Comes with the original power supply.
Cambridge Audio DACMagic 2 – 100$
In working condition.
Dynakit ST-70 + PAS-2 – 750$
The ST-70 had a basic recap. It is in good working condition. PAS-2 has good measuring tubes, including the rectifier tube. I have left the old rectifier diodes in but replaced the filter capacitors as well as the capacitors in the signal path. Only the capacitors in the tone circuit were left untouched, and I haven’t molested with the circuitry to leave-out the tone control. The ST-70 has minor rusting, otherwise in good condition, PAS-2 has vent holes drilled on the side, but the brass front plate is clean with some marks. All the knobs are intact and they are the ones with the brass tips.
Marantz SC-80 – 350$
This preamplifier is in the original box and in very good cosmetic condition. It is not restored but I had to attend the 14V rail, as the regulator was shorted. It didn’t cause any other trouble over the board. I have investigated the root cause and noted that one of the resistors was out of spec. It works without any problems.
Sony A9 DAT – 125$
220V version, and no, the transformer is not supporting multi-voltage. It has been used as a DAC rather than a DAT for A/D and D/A conversions and it has a nice sounding DAC. Comes with the original box.
I am repairing and restoring audio equipment as an amateur hobbyist. I like to listen to different audio equipment, so to satisfy my hobby, I prefer to buy equipment in non-working condition and try to fix them, to bring the cost of my hobby to a minimum. I usually circulate my equipment regularly but due to the pandemic, these are piled up and they need to go to open room for more.
The new components were not chosen to be cost sensitive in any of the following equipment, they are rather picked as I would decide to keep that equipment in my system if I like the sound character.
I am more open to trade than cash deals. If you have any equipment which is in need of repair and it is an interesting equipment of it’s era, like the Fisher K-200-C, Sony TA-2000F or the Luxman C-1000 below, I would be more interested in that. I am always on the lookout for a preamplifier to match with my TAN-8550 or Radford STA-25S3 and DACs.
Resellers, who are interested in the complete list, are encouraged, as it will greatly reduce my time to deal with these.
I will, under no circumstances, do shipments. Local pick-up from CA, Redwood City area is the only option.
Fisher 400 – 450$
This is a recapped receiver. Can caps were purchased from CE-Manufacturing. One 40-40-40-40 was taller than the original and it was not replaced. The original was checked at rated voltage with a Heathkit IT-28 and it was found to be not leaky. If the next owner prefers to use this receiver without the wooden case (not included), it can be replaced, as I will include the new CE-Manufacturing can capacitor with this receiver. All the tubes on the amplifier stage have been checked. Some of them have been replaced by either New (Tungsol gold-pin) or NOS tubes. The output tubes were purchased as a matched quad and the small signal amplifier tubes were matched using Hickok 752A tube tester, which allows dual-tube measurements, which is ideal for matching purposes. The eye-tube is also replaced with a brighter, NOS part. The factory schematic was followed during recapping and checking the tolerances of the resistors. The IMD is within factory specs. The bias of the tubes is stable, the voltages are a little higher due to the 110V vs 125V difference however, this does not seem to impact the performance, as there are no over heating components. Needless to say that the lights on the front panel work. The pots and the switches have been cleaned but no alignment has been done on the radio section. Cosmetically it is in good condition, has all the knobs and the brass tips. Installed rubber feet.
Fisher K-200-C – 650$
It comes with the refurbished wooden case and the brass grille. Recapped with Hayseed Hamfest can caps and other branded capacitors. New Tungsol output tubes were bought as a matched quad. Small signal tubes are new/NOS and matched with my Hickok 752A tube tester. The biases of the output tubes were adjusted and the protection modification, which is suggested by the Blue Glow Electronics to protect the output transformers in the case of a tube failure, is implemented. As it is always the case with these, the 110V to 125V mains difference causes the voltages to be higher than what they are supposed to be, but no modification has been implemented to correct for this, to keep the amplifier as original as possible. The IMD is within factory spec, and correct service manual for this amplifier was used to check the tolerances of the resistors and other components. As I haven’t finalized this restoration, pots and switches may require attention. If they are left at their current positions they do not introduce any noise, but may require cleaning if they are going to be operated frequently.
You can find my discussion while restoring this product here: https://www.diyaudio.com/forums/tub...-202-restoration-power-supply-voltages-2.html
One output transformer was refurbished by: Transcendar Transformers - Fisher
Sony TA-2000F – 450$
Completely original preamplifier in perfect working condition. Very flexible and versatile preamplifier for people who have various and challenging sources like low impedance, low output MC cartridges. It works great with my EMT TSD-15 for example. Comes with the DIN cable for tape recorders and I have purchased the recap kit, thinking I may be needing it down the road, however, never ended up replacing the capacitors in the power supply. However, I will include the recap kit with this preamplifier. In good cosmetic condition.
Luxman C-1000 Anniversary – 450$
In original, working condition. Nice sounding preamplifier which has support for different impedance loads for Phono-1 input. Has a Touch Mute function, which mutes the sound when you touch where the sensor is, with your finger, and to unmute, you just need to hold the volume knob. Wooden case has some scratches, other than that, good overall cosmetic condition.
PS Audio 5.0 – 150$
In working condition. I had to replace the RCA connectors at the back, most probably the previous owner used heavy interconnects and most connectors were suffering from brittle plastics and they were not applying enough pressure to hold the connectors in place. Comes with the original power supply.
Cambridge Audio DACMagic 2 – 100$
In working condition.
Dynakit ST-70 + PAS-2 – 750$
The ST-70 had a basic recap. It is in good working condition. PAS-2 has good measuring tubes, including the rectifier tube. I have left the old rectifier diodes in but replaced the filter capacitors as well as the capacitors in the signal path. Only the capacitors in the tone circuit were left untouched, and I haven’t molested with the circuitry to leave-out the tone control. The ST-70 has minor rusting, otherwise in good condition, PAS-2 has vent holes drilled on the side, but the brass front plate is clean with some marks. All the knobs are intact and they are the ones with the brass tips.
Marantz SC-80 – 350$
This preamplifier is in the original box and in very good cosmetic condition. It is not restored but I had to attend the 14V rail, as the regulator was shorted. It didn’t cause any other trouble over the board. I have investigated the root cause and noted that one of the resistors was out of spec. It works without any problems.
Sony A9 DAT – 125$
220V version, and no, the transformer is not supporting multi-voltage. It has been used as a DAC rather than a DAT for A/D and D/A conversions and it has a nice sounding DAC. Comes with the original box.