Hi!
Could anyone tell me the 6P36S tube's (in triode mode) plate resistance?
Is the Ri ca. 680 Ohm or 1KOhm?
Has anyone any useful info about this tube in triode mode? Triode curves, load lines, etc?
Greets:
Tyimo
Could anyone tell me the 6P36S tube's (in triode mode) plate resistance?
Is the Ri ca. 680 Ohm or 1KOhm?
Has anyone any useful info about this tube in triode mode? Triode curves, load lines, etc?
Greets:
Tyimo
Thanks, but I know this one. It is from the Bartola Valves site.
I still don't know what is the plate resistance? 1K or 680R? Somewhere I saw the 680 Ohm value too.
I still don't know what is the plate resistance? 1K or 680R? Somewhere I saw the 680 Ohm value too.
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You can see that with the analogue curve tracer the Ra is estimated. The other value comes from the spice mode which is more accurate. As you know the Ra will vary at different points in the curve.
Hi,
bias is around -35V but I found that this can vary a lot between PL509s, so a large bias setting range is helpful.
I did measure distortion but I don´t remember the exact values. Well below 1% at 1W and still below 10% at 10W iirc.
Philipp
bias is around -35V but I found that this can vary a lot between PL509s, so a large bias setting range is helpful.
I did measure distortion but I don´t remember the exact values. Well below 1% at 1W and still below 10% at 10W iirc.
Philipp
I have some nuvistors (NOS) looking for a home....
a pair of TEK 157-0108-00 (selected, matched pair) one, one 8393, pair of 6CW4/6DS4, pair 7586.
-RNM
a pair of TEK 157-0108-00 (selected, matched pair) one, one 8393, pair of 6CW4/6DS4, pair 7586.
-RNM
Throwing out a request for advice. Attached are some pictures of the biggest $1 tubes I have acquired.
From left to right:
"super 6BG6GA" (not $1!)
GE 19BG6GA
Raytheon 19BG6GA
21EX6
36LW6
I was wondering if you knew or had tested or had a guess at which could work in triode service for decent power, i.e. which ones might work at above the rated screen maximum voltage if triode strapped.
I'll quote you their published screen ratings to save you time.
19BG6GA: 350V, 3.2W
21EX6: 195V, 3.5W
36LW6: 280V, 7.0W
From left to right:
"super 6BG6GA" (not $1!)
GE 19BG6GA
Raytheon 19BG6GA
21EX6
36LW6
I was wondering if you knew or had tested or had a guess at which could work in triode service for decent power, i.e. which ones might work at above the rated screen maximum voltage if triode strapped.
I'll quote you their published screen ratings to save you time.
19BG6GA: 350V, 3.2W
21EX6: 195V, 3.5W
36LW6: 280V, 7.0W
Attachments
leadbelly
There is a thread using the 36Lw6 as a triode at 300 volts for 72 watts; hard to imagine 72 watts from only 300 volts
http://www.diyaudio.com/forums/tube...-rla-lw6-triode-connection-4.html#post5470541
Phil
There is a thread using the 36Lw6 as a triode at 300 volts for 72 watts; hard to imagine 72 watts from only 300 volts
http://www.diyaudio.com/forums/tube...-rla-lw6-triode-connection-4.html#post5470541
Phil
Not really. He's using 320V @ 120mA; that's 38.4W per 36LW6, so getting 75W from each PP pair isn't that hard to imagine.