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Iv got a 100w OPT That needs a circuit
Iv got a 100w OPT That needs a circuit
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Old 29th January 2016, 12:47 PM   #1
lawbadman is offline lawbadman  Jamaica
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Default Iv got a 100w OPT That needs a circuit

Hello Guys,

I have a Massicore 100watt 4.5k output transformer (43%UL taps) that I need to put to good use.
There are many circuit diagrams on the web, mostly using kt88 tubes but the decision it tough....

I am basically looking for :
-high power
-low complexity

Can you guys recommend some of your favorites?

Thanks all
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Old 29th January 2016, 01:48 PM   #2
azazello is offline azazello  Bulgaria
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KT150, 815 GE, 300B...Big Iron - big Sound.
Projects: OTL-OCL 6AS7 Gen. Electric, SEs 2A3 RCA, 300B JJ, 6S4S, 4P1L, EL11 Telefunken, 6AS7 RCA, 6S33S, 6S41S, 6S19P, E84L Siemens, E236L Telefunken, headphone ampl. OTL Loftin White 6AS7 RCA,... PPs 6005 Gen. Electric, EL34 Mullard, 6L6....
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Old 29th January 2016, 02:44 PM   #3
nigelwright7557 is offline nigelwright7557  United Kingdom
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I had a similar transformer and used 4 off EL34 in the output stage.
You just need some front end amplification, tone control and phase splitter and you are there.
Murton-Pike Systems PCBCAD51 pcb design software. http://www.murtonpikesystems.co.uk
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