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Old 22nd April 2012, 11:34 PM   #21
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I use mostly television tubes in my amps , like PCF802 in the RIAA preamplifier , and PCC88 and EF183 in the analog stage of the CD , and PCC85 , PCL82 and RFT PL36 in my Circlotron OTL tube amplifier , and I think PL36 is very good and stable tube and performs well too .
Here is some Photos .
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Old 22nd April 2012, 11:58 PM   #22
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"Would you want to find some NOS black plate RCA 6L6GA's in a tiny bottle with a different pinout for $3 each?"

6BD5GT ?

http://frank.pocnet.net/sheets/127/6/6BD5GT.pdf
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Old 23rd April 2012, 12:29 AM   #23
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Quote:
6BD5GT ?
Thats it. Can't see who made yours. Mine are ITT branded RCA's.

UH OH, the price is rising already and I only have 2. OH well The 6L6GA isn't powerful enough for my tastes anyway. I have extracted 250 watts from a pair of REAL TV tubes!

Note the pinout is the same as the 6AV5, 6AU5, 6FW5. Dissipation is downrated to 15 watts in the tiny bottle, but I haven't actually tested that limit yet.

With other overstuffed tubes (the 6AQ5) there is a fine line between the max rating and a hole in the glass. Meaning, don't red plate a 6AQ5. Rge red comes in one tiny spot.....followed shortly by a depression in the glass.....then a hole!
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Old 23rd April 2012, 12:44 AM   #24
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Don't worry, there is still the 12GC6 for $2 at vacuumtubes.net (12DQ6 with a different pinout)
Then there is 21HB5 at $1.

OMG! I just looked at vaccumtubes.net and they have another super sale on!!
Long list with:
$0.75 each
$0.50 per 100
$0.35 per 500

A bunch of real scuzzo tubes on it, but some interesting ones.
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Old 23rd April 2012, 01:16 AM   #25
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sssssshhhhh!!!! not so loud please....someone might buy 10000 of those....
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Old 23rd April 2012, 01:50 AM   #26
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They list the 6BD5GT for $2.

Lets see $50 gets me 100 sweep tubes. If I wire them all together how many Jiggowatts will I get......Or would I just black out a city block when I flip the switch from the heater inrush current?

I am taking about 5000 tubes to Dayton for sale......maybe I can buy a few to play with????? The wife is out of town!

I got this wicked looking power transformer with taps for 375, 545 and 800 volts rated for 735 mA. I been dreaming up some really BIG guitar amps.......

I already have a bunch of 12GC6's and several other tasty sweep tubes.
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Old 23rd April 2012, 02:18 AM   #27
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i got a tube guitar amp lined up to use 8 x 12BQ6G's in parallel push pull, i reckon i might be able to squeeze at least 200 watts out of it....
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Old 23rd April 2012, 02:38 AM   #28
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Don't forget the cost of the sockets and the chassis space. The tubes could be free, but a bigger tube with fewer sockets could still be cheaper.
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Old 23rd April 2012, 03:10 AM   #29
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Picked up five 6BD5 cheap on ePrey, will use as pass tubes in some voltage regulator or other..

I'll take a look at the EC86 as well.

Thanks for the tips!
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Old 23rd April 2012, 03:17 AM   #30
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Using 12GC6 you can make a very nice tube amp with cheap output transformer.
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