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Another Bassman variation, the Bassman Ten. Sweet little 4x10 combo with both channels blend-able because they are in phase. Most of the other Fenders have channels 1 and 2 out of phase because of the added reverb stage of channel 2. This amp is really clean, even when cranked.

Another Bassman variation, the Bassman Ten. Sweet little 4×10 combo with both channels blend-able because they are in phase. Most of the other Fenders have channels 1 and 2 out of phase because of the added reverb stage of channel 2. This amp is really clean, even when cranked. Strangely has four 32 ohm speakers wired in parallel for 8 ohms.  Did 42W at clipping with two 6L6GCs..

Unfortunately caps in the bias supply failed making the bias draw increase until one of the power tubes shorted and blew the fuse. Recap was overdue anyway since this amp is from 1973.

The large trimpot right behind the master volume is for balance, not bias. The smaller trimpot attached was added to adjust  bias, in series with the 15K resistor. Unfortunately caps in the bias supply failed causing the bias current to increase until one of the power tubes shorted and blew the fuse. It was about time for recap anyway since this amp is from 1973. Oh well, power supply should be good now for about another 40 years……

Fender Bassman Ten schematic

Fender Bassman Ten schematic