Dynaco ST 70 Vacuum Tube Stereo Amplifier rebuilt and upgraded
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Vintage amplifier in very nice condition. See pictures New stuffed circuit board from Angela Instruments, new filter choke, new wiring, tube sockets, caps, resistors and tubes. Upgraded power supply from SDS Labs. This gives more capacitance for more bass punch. The new power supply bypasses the old can capacitor so it is disconnected but left on the chassis for visual effect. No dents or any damage. Lettering is good. The chrome shows a few tiny imperfections but I rate it better than 9/10. These imperfections can be seen on the back of the chassis. There are a few black paint smudges on one side of the cage which I think can be easily removed but I will leave that task to the new owner. Solder joints show quality workmanship. Tubes are new production EL-34 Svetlana, 5AR4C Ruby, and 2 nos GE 7199 drivers. I guarantee this amplifier works well. It will not be DOA upon arrival. This amplifier had 2 owners, both non-smokers. I am the second owner and performed the upgrades. I am also a Ham radio license holder. I will include a copy of the original assembly manual with schematic. Amplifier will be delivered with the tubes removed and boxed separately for safety. This is a heavy amp, so I will be bubble wrap and double box. Shipping cost including insurance will be $65.00. Shipping will be via USPS or UPS or FedEx ground. I
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