> Also looking for good plans for using pair 8877 tubes??? > Also looking for good plans for pair 4-1000 tubes??? > A single YC-156 will out-smoke any of the above. Requires no socket, heater is 15 volts @ 15 amps. Generally same specs as 3CX15000B7, except that the anode cooling fins are smaller. MRI pulls show up on E-Bay quite often. (((73))) Phil, K5PC