Dynaco ST-70 Dynakit Stereo 70 Tube Amplifier with Cage Vintage for Restoration
Dynaco ST-70 Dynakit Stereo 70 케이지 포함 진공관 앰프 빈티지 복원용
| 상품번호 | 358772775514 |
| 상태 | Used |
| 거래유형 | 즉시구매 |
| 출고국 | 미국 (US) |
이베이 판매가
$719
약 1,059,806원
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상품 설명
Vintage Dynaco ST-70 Dynakit Stereo 70 Vacuum Tube Amplifier with Cage. I also have a Dynakit preamp that I will be listing on Ebay as well.
This Dynaco Amplifier shows signs of wear from age but presents well and actually powers up and sounds very good.
HOWEVER . . . DO NOT BUY THIS UNIT if you do not understand that it is 50 - 60 years old and should be overhauled by an experienced and certified electronics technician. Vintage vacuum tube amps like this operate at high voltages and should be considered dangerous to operate if not inspected by a qualified technician. DO NOT OPEN IT UP UNLESS YOU ARE SUCH A TECHNICIAN!
As with all vintage vacuum tube amplifiers, my suggestion would be to have a qualified technician replace the load resistors and filter capacitors in the power supply, as well as the coupling capacitors and the cathode bypass capacitors in the tube circuits.
Power output: 35 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 40kHz
Total harmonic distortion: 1%
Vintage Dynaco Dynakit Stereo 70 ST-70 Tube Amplifier
Vintage item sold in AS-IS condition, for parts, or restoration/repair only.
Condition / Testing:
Unit powers on (see video)
Some corrosion and rust are present throughout the unit, consistent with long-term exposure to moisture or a humid environment.
Oxidization is present on many electrical connections, including portions of the tube sockets and pins
Power cord appears to have been replaced
Fuse is present in fuse holder
Diagnosis and repairs should be performed prior to any attempt at operation.
Front-panel switch moves freely and produce a normal mechanical click when operated.
All speaker terminal screws can be loosened and are not seized.
No further troubleshooting, diagnostics, or repairs have been performed.
There is no guarantee of functionality beyond what is described here.
Tube Information:
Tubes are installed as found and are mixed brands. Tubes have not been tested and are included as-is. No guarantee is made regarding condition, performance, or remaining life.
Output Tubes:
4 - 6CA7 / EL34 power tubes
1 - 5AR4 / GZ34 AC-to-DC rectifier tube
2- 7199 driver tubes
Cosmetic Condition:
Unit needs to be cleaned
Rust is present on the chassis and cabinet surfaces, both inside and out.
Paint is flaking from the center power transformer.
Original top cover screws were missing and have been replaced.
See photos for more detail. Includes only what is pictured.
Does not include any additional accessories or components.
Buyer is responsible for confirming compatibility with their system/setup before purchase.
Purchase with confidence:
We are experienced with selling and shipping this type of item and we will package properly for safe transit.
Please do not hesitate to ask any questions prior to purchase.
Packing will be by the double box method.
Shipping will be by FedEx Home Ground Economy Delivery.
Please do not bid on this item unless you agree to the previous information.
This Dynaco Amplifier shows signs of wear from age but presents well and actually powers up and sounds very good.
HOWEVER . . . DO NOT BUY THIS UNIT if you do not understand that it is 50 - 60 years old and should be overhauled by an experienced and certified electronics technician. Vintage vacuum tube amps like this operate at high voltages and should be considered dangerous to operate if not inspected by a qualified technician. DO NOT OPEN IT UP UNLESS YOU ARE SUCH A TECHNICIAN!
As with all vintage vacuum tube amplifiers, my suggestion would be to have a qualified technician replace the load resistors and filter capacitors in the power supply, as well as the coupling capacitors and the cathode bypass capacitors in the tube circuits.
Power output: 35 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 40kHz
Total harmonic distortion: 1%
Vintage Dynaco Dynakit Stereo 70 ST-70 Tube Amplifier
Vintage item sold in AS-IS condition, for parts, or restoration/repair only.
Condition / Testing:
Unit powers on (see video)
Some corrosion and rust are present throughout the unit, consistent with long-term exposure to moisture or a humid environment.
Oxidization is present on many electrical connections, including portions of the tube sockets and pins
Power cord appears to have been replaced
Fuse is present in fuse holder
Diagnosis and repairs should be performed prior to any attempt at operation.
Front-panel switch moves freely and produce a normal mechanical click when operated.
All speaker terminal screws can be loosened and are not seized.
No further troubleshooting, diagnostics, or repairs have been performed.
There is no guarantee of functionality beyond what is described here.
Tube Information:
Tubes are installed as found and are mixed brands. Tubes have not been tested and are included as-is. No guarantee is made regarding condition, performance, or remaining life.
Output Tubes:
4 - 6CA7 / EL34 power tubes
1 - 5AR4 / GZ34 AC-to-DC rectifier tube
2- 7199 driver tubes
Cosmetic Condition:
Unit needs to be cleaned
Rust is present on the chassis and cabinet surfaces, both inside and out.
Paint is flaking from the center power transformer.
Original top cover screws were missing and have been replaced.
See photos for more detail. Includes only what is pictured.
Does not include any additional accessories or components.
Buyer is responsible for confirming compatibility with their system/setup before purchase.
Purchase with confidence:
We are experienced with selling and shipping this type of item and we will package properly for safe transit.
Please do not hesitate to ask any questions prior to purchase.
Packing will be by the double box method.
Shipping will be by FedEx Home Ground Economy Delivery.
Please do not bid on this item unless you agree to the previous information.