Job lot of transformers and chokes from 2-chassis 300B amp

[dch53]

These 6 transformers and 6 chokes from local manufacturers were salvaged from the power supply of a 2-chassis stereo 300B amp.

Chokes are 10H 100mA (4) and 5H 150mA (2).

The transformers are designed for 240VAC mains. The 2 marked transformers are: 390.0.390/250.0.250/6.3/5 from 240V @ 0.12A, 0.1A, 1.6A and 4A respectively

I measured the 4 unmarked transformers by putting in 10VAC and measuring the secondaries and multiplying by 24.

• The 2 medium sized transformers measured 800V (strange!), 36V (not sure what that was for) and 5V (300B heaters)
• The 2 smaller transformers, one of which is labelled “Heaters”: 12V (for the tube rectifiers), 16.6V (which was regulated for the input/driver tubes) and 130V (presumably for the bias).

I really should have measured the voltages in-situ but the amp was old and the workmanship poor – I didn’t want to even turn it on! I was really after the Tamura output transformers which I've already advertised.

Probably not worth shipping so local pickup in Perth WA would be best.

You can have the lot for Aus$100.