We can provide
power transformer which use for 117V, 220V, 230V, 240V.
YouTube channel > Otomon Lab YouTube Channel
YouTube channel > Otomon Lab YouTube Channel
I will give discount 10% or more for all item in my eBay listing,
contact me for more detail
- Recommendation
71A drive 300B SE tube amplifier, made for Western Electric 300B
This product is not for sale, if you want the same item, please contact me for special order making- Manufacturer:
- OTOMON Lab
More detail pictures:
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Prestage is EF86, Secondary stage is 71A, coupling to 300B. In drive stage 71A current is 20mA, in stage 300B current is 60mA , output is 10W.
In drive stage, 71A use separate power supply. It make sound more quite and clearly.
You can order 300B drive 300B
Specification:
No NFB mode
Response frequency: 10Hz ~ 30Khz (-1db)
THD: 0.5%
Hum level : 0.5mV
NFB(-1db)
Response frequency: 10Hz ~ 35Khz (+-0db)
THD: 0.2%
Hum level : 0.25mV
Sound is perfect, quite silent. Noise is about 0.2mV, no hum no noise can be hear even using with 110db sensitive speaker. very wide sound stage and musical. This was made for WE 300B so current on plate was set at 60mA only to keep tube life long.
No tube included.