I've been wanting to build a Matchless Lightning with EL34 tubes for months, and in my analysis of how to find the correct voltages, and even more complicated, how to find the correct transformers, I found the schematic for the Bad Cat Hot Cat 30. So what did I do? I used the power transformer from a Deluxe Reverb Reissue that gives me (325V-0-325V 207mA) & (6.3V 4.5A), the output transformer is from a Bandmaster with 4,000 impedance in the primary and 40 watts, and a choke from an AC30.
I wired the tonestack in Fender/Marshall style to avoid interaction with the bass that the Matchless tonestack inherited from Vox.
The values of the cathode resistors of the power tubes are not correct but I have not yet calculated the correct value, I just put any value so as not to leave it blank.
Please check it out and give me your advice or warnings. Thanks in advance
New version, I changed the power transformer for one from Bassman, the 290DX has the same voltage 325V-0-325V but in this case I have 230mA instead of 207mA. Now I have diode rectification to make the most of the voltage.
Matchless Lightning EL34 Diodes-1.jpg
The schematics I used are the Matchless DC30, Matchless Lightning, and Bad Cat Hot Cat 30.
badcat_hotcat_30-1.jpg
Matchless-Lightning-Schematic-1.jpg
Matchless-DC30-Old-Schematic-1.jpg
Matchless-DC30-Old-Schematic-2.jpg
Matchless-DC30-Old-Schematic-3.jpg
Matchless-DC30-Old-Schematic-4.jpg
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