For sale: a Heathkit – MA-12 mono valve power amplifier, manufactured by Daystrom Ltd. in Gloucester, England.
The MA-12 is a compact British-built tube amplifier from the classic Heathkit era, using a push-pull pair of EL84 output valves. It was designed as a high-fidelity mono power amplifier and could also be used as part of a stereo system when paired with a second MA-12. The original specification rates it at 10 watts RMS / 12 watts maximum. ManualsLib
This example has recently been serviced and tested.
''Please ask us for a shipping quote for the best shipping rates. Shown costs might be incorrect, or we can offer better services''
Cosmetic condition:
Used vintage condition with visible signs of age and previous use.
- Scratches, marks and small paint chips on the chassis
- Age-related wear to the transformers, metalwork and valve bases
- Some components and transformer sections have previously been wrapped/taped
- Overall appearance is original and unrestored rather than cosmetically refinished
- Please inspect the photos carefully for the exact cosmetic condition
Working Condition
- Tested and working
- Valves power up normally
- Hum balance has been adjusted
- Amplifier passed its recent functional test
Service Preformed:
- 2 output valves replaced
- Hum adjusted
- Tested: OK
Specs:
- Power output: 10 watts into 8Ω (mono)
- Frequency response: 20Hz to 30kHz
- Total harmonic distortion: 0.15%
- Damping factor: 30
- Input sensitivity: 0.12V
- Signal to noise ratio: 85dB
- Valve complement: 1 x EF86, 1 x ECC83, 2 x EL84, 1 x GZ34
Dimensions (LxWxH): 11-1/8 x 6-3/4 x 5-3/4 inches
Weight: 8 Kg
Volts: 100-240v (If it’s 200V or higher, you’ll need an adapter in the USA)
We ship worldwide.
For international shipping, import fee's apply. These vary per country, and are for the buyer to pay.
-Shipping in the EU up to 30 KG (max)
-Shipping outside of the EU up to 20 KG (max) Shown costs might vary. Please ask us for a shipping quote for the best rates!
-We kindly ask you to reach out for the best shiping rates. As rates vary per shipper, we can ask custom shipping quotes.
Please note: ‘’Whenever an item exceeds the weight noted above. Please ask for a shipping quote before making a purchase. The shipping costs are estimated in our shop because we do not know the shipping address.
Picking up the item is also possible. It can be picked up in Alkmaar
Delivery by us is also possible in some cases. Please reach out to us for more information about deliveries
State of listing: If a listing is listed ''for parts or not working'' returns are not accepted.
When we offer our products with the notice ''Serviced'' or ''Fully serviced'' that means the device is either ''serviced'' with a new belt, and cleaned the pots, Or ''Fully serviced'' recapped, Quiescent current adjusted etc as expected from a full service
