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Re: 5 Transistor Frank Schematic Needed [message #15056 is a reply to message #15054]

Mon, 10 January 2011 09:40

cassent5150
Messages: 341
Registered: August 2009

Senior Member

Stevem this model uses all PNP power transistors in the back panel. 2N3055's are NPN. Me and the conductor on here have these models. I think he's having Bill Collins go through his to get it going good. His works but its not very loud. I got mine up and running last night. Its not pushing the wattage it should but it was a experiment so I'm still pleased. I'm trying to find a suitable TO-3 PNP power transistors. Maybe you can help me here? I found a couple so far but in most cases theres a max on the emitter-base voltage difference (Much lower). Other than that, take a look at a Data Sheet for NTE180 "my first choice" and an 2N6287 (to use in place of the ECG213) and tell me what you think. I have the 2N301's in there now cause its all I had on hand in PNP at the moment. Thanks Steve C

Steve C

[Updated on: Mon, 10 January 2011 09:56]

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[Message index]

		5 Transistor Frank Schematic Needed By: cassent5150 on Sun, 09 January 2011 14:18
		Re: 5 Transistor Frank Schematic Needed By: stevem on Sun, 09 January 2011 16:10
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Mon, 10 January 2011 09:40
		Re: 5 Transistor Frank Schematic Needed By: chicagobill on Mon, 10 January 2011 12:32
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Tue, 11 January 2011 04:20
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Tue, 11 January 2011 08:30
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Tue, 11 January 2011 09:31
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Tue, 11 January 2011 10:12
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Tue, 11 January 2011 12:07
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Tue, 11 January 2011 12:19
		Re: 5 Transistor Frank Schematic Needed By: chicagobill on Tue, 11 January 2011 12:41
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Tue, 11 January 2011 14:16
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Tue, 11 January 2011 15:34
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Tue, 11 January 2011 17:48
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Tue, 11 January 2011 18:04
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Tue, 11 January 2011 20:46
		Re: 5 Transistor Frank Schematic Needed By: stevem on Wed, 12 January 2011 15:22
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Wed, 12 January 2011 19:57
		Re: 5 Transistor Frank Schematic Needed By: stevem on Sat, 15 January 2011 11:34
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Sat, 15 January 2011 16:57
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Sun, 16 January 2011 10:30
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Sun, 16 January 2011 11:16
		Re: 5 Transistor Frank Schematic Needed By: stevem on Sun, 16 January 2011 13:56
		Re: 5 Transistor Frank Schematic Needed By: cassent5150 on Sun, 16 January 2011 18:19
		Re: 5 Transistor Frank Schematic Needed By: conductortom on Sun, 16 January 2011 20:56

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