Happy New Year!! I have unusual tubes...

[Jazz P Bass]

Groovy!! Thank you! I googled for ECL80 amplifier and got nothing as useful as this! Did you aready have this or do you use a different search engine?

Groovy????

I used Google & typed in ECL80 vacuum tube.

[nickb]

It's all in the name.

E = 6.3V heater
C = Triode
L = Pentode

An ECL80 is therefore a Triode/Pentode with a 6.3V heater

But why not 6TP...? I guess the marketing department got involved (sorry sales guys)

[Dave H]

But why not 6TP...?

There's more to it than I posted. I think E actually denotes 6.3/12.6V parallel/series heater. C is small signal triode and L is power pentode. The 80 numbers are B9A base.

[tedmich]

Check tkdrew's (Todd Smith) Box 'O Dirt ECL80 guitar amp
Box O Dirt by Kristi Smith | Photobucket
he discusses it a bit at AX84, where I can't remember a tube they didn't make into a guitar amp...
see here:
http://ax84.com/drums/bbs/dm.php?thread=283595

[Gingertube]

Triode/Pentodes
Here is a handy little chart, for comparison purposes the ECL80 Triode Section has a mu of approx. 17 and the Pentode section has a power rating of 3.5W
Cheers,
Ian

[nickb]

HAPPY NEW YEAR Amp buddies!!!

Well there I was, just browsing and there was a box of 20 ECL80 valves for £2. So I bought them. Just an impulse buy.
Now I'm thinking it would be nice to actually design something that will work with them but they aren't very common.
I had no joy finding a datasheet, google threw me a couple of links but they wouldn't display properly (ok, maybe that might be my browser).
I would love to know if anybody here has knowledge and / or experience with these at all. Has anybody managed a decent result using these as preamp tubes? Does anyone have a datasheet for them that they wouldn't mind sharing?

Taking a different path, I wonder if you would make a single tube stand-alone spring line reverb? Use the pentode for the driver and the triode for recovery? The triode's gain is a bit low but you can drive the tank harder with the pentode to compensate.

[Gingertube]

See also (click on the link in post #1).
ECL80 stereo pp amp - UK Vintage Radio Repair and Restoration Discussion Forum

These tubes were used in a lot of the cheap/inexpensive "portable" record players of the day, often just mono.

Cheers
Ian