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Old 4th January 2004, 08:49 AM   #11
wrl is offline wrl  United States
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Just make sure you don't kill yourself with a tube amp... oh and I don't think rubber gloves are a useful alternative!

Just my oppinion. (Oh, you could try and turn them into a leach amp...

-Wes
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Old 8th January 2004, 04:00 AM   #12
VictorG is offline VictorG  United States
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Default Partial List

Sorry to have taken so long guys. My uncle responded with a patial answer saying that of the 1500+ tubes he took a quick look and said he definitaly had several of the following.

6SN7
12SN7
12ax7
5687
2a3
EL34

He is doing a compleate inventory later, but with these do you guys have any suggestions now as to which design i might want to pursue? Thanks, Brian
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Old 8th January 2004, 04:05 AM   #13
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Hi,

So far, so good....

All of the references you show are great for audio...

I'd take as many as I could possibly afford.

Cheers,
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Old 8th January 2004, 04:08 AM   #14
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Hubba-Hubba!!!!,
Get them all. Now an overlooked area: rectifier tubes. 5U4, 5AR4, 5R4, 6AX4, 6W4, 6AU4, 6CA4, 5Y3, EY500 and a few others a few folks will probably chime in with. Not all are twin diode, some are singel diodes and you'll need two. 6AU4 is like this, nice tube though, long warm up, clean switching, tough as nails...

The list you posted offers many options for an amp. PP 2A3 for abour 8 watts, PP EL34 for 20-30 watts. 5687 is a great driver and amplifier tube 6SN7 and 12SN7 are also great tubes for front ends and pre-amps.
now the hard part, sorting the suggestions.
regards,
Douglas
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Old 8th January 2004, 10:32 AM   #15
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6SN7
12SN7
12ax7
5687
2a3
EL34

I'd consider two amps - you can bi-amp or have two systems or whatever.
Amp 1 - PP 6SN7 into 2a3 (look for circuits inc. 6B4G, same except heater)
Amp 2 - PP EL34 with front end of 6SN7 again probably

It just happens to be the case that 6SN7s, 2a3 and EL34 original tubes are very collectible and the most valuable of the above, so get a few of each for 'spares' and you will do very well indeed by your uncle.
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Old 8th January 2004, 06:27 PM   #16
VictorG is offline VictorG  United States
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so this is my first forey (prob not right spelling) into tubes, so i am going to ask for opinions on amps I have found... let me know your opinions.

Looking at EL34 designs:

Would this do the trick?

Or this design

And on this one, if it is a go design, where do i get +350V from?

Would you reccomend either of these? If not do you have any specific designs you would suggest? I think I do want to pursue the EL34 route to achieve somewhere near 25W

Thanks O experts of tubes

Brian
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Old 8th January 2004, 10:18 PM   #17
VictorG is offline VictorG  United States
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Default More optinons

Yet more options with tubes available... let me know what you think of these as well....

1.)EL34/6SN7 PP

or this

2.)EL34 50w

3.)or this , one which I can use the 12AX7 in and only be short one tube / channel.

4.) Or one ]this one[/URL] ]this one[/URL] which has nice documentation in terms of a parts list, and appears the simplest to my eye.... alas it does not say the wattage....



I have labaled with numbers for easy reference in responses. Bascially since i have never built these am and only beggining to learn about tubes I am looking for what you people think would sound best given the tubes....

Thanks Again,
Brian
B
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Old 8th January 2004, 10:34 PM   #18
VictorG is offline VictorG  United States
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sorry, #4 link on that last page was dead.... here it is
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Old 8th January 2004, 10:36 PM   #19
VictorG is offline VictorG  United States
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okay i see the problem now, its not that the link is dead, just that you have to hit reload as if you were not being linked inform another site.

B
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Old 8th January 2004, 10:44 PM   #20
VictorG is offline VictorG  United States
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OKAY....
so to view that second set of designs, after you get a forbidden page you have to copy the address into another IE window to see it.... i just dont know why i cant link people in normal style.... let me know what you think, espessially that last one.... B
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