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artdecoradios
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Post subject: Question re odd tube.  Posted: Feb Tue 28, 2012 12:39 am |
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Joined: Aug Thu 06, 2009 12:20 am
Posts: 218
Location: Wheat Ridge, CO
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Can anyone give me any information as to why ELL80/6HU8 tubes are so hard to find and why virtually no tube tester even lists them? I recently found a Fisher amplifier which uses 2 of them. This amplifier is evidently the last one made by Fisher with tubes before they went to solid state in around 1965. Thanks.
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Tom Bavis
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Post subject: Re: Question re odd tube. Posted: Feb Tue 28, 2012 1:54 am |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3852
Location: Rochester NY USA
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The last tubes introduced had the least time to build up inventory before they were discontinued... try looking up a 6DY7 (good luck!), 6JK6, ECLL800, ECC808...
Grundig actually came out with an adapter to use two EL95s in place of an ELL80.
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Bugman
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Post subject: Re: Question re odd tube. Posted: Feb Tue 28, 2012 2:00 am |
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Joined: Mar Sat 14, 2009 5:56 pm
Posts: 2014
Location: RI, 02885
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I looked at some of my tube tester data and found the tube listed in charts for the following testers I have on hand.
B&K 606
EICO 666
Mercury 1100
Hickok 800A
I didn't bother digging out my Hickok I-177 Charts for which I have the updated data so it is probably there also. It doesn't seem to be a particularly hard tube to test.
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Tubenut
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Post subject: Re: Question re odd tube. Posted: Feb Tue 28, 2012 6:38 am |
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Joined: Oct Sun 11, 2009 10:06 am
Posts: 1441
Location: British Columbia
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If the circuit isn't ultra-linear, use a 6360. You will have to rewire the socket though.
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Lou deGonzague
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Post subject: Re: Question re odd tube. Posted: Feb Tue 28, 2012 4:02 pm |
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 6988
Location: Latham NY
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They are a little scarce, not a popular tube. I repaired a Fisher console that used them to drive a transistor output stage using 8 germanium power transistors,I think it was a model F-59. I'll have to check and see if I have any.
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radiotechnician
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Post subject: Re: Question re odd tube. Posted: Feb Tue 28, 2012 9:30 pm |
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Joined: Sep Thu 23, 2010 6:37 am
Posts: 3951
Location: Powell River BC
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The ELL80 and the ECL800 were quite well known in the European tape recorder and
receiver service business in the 60's, again in the last models before transistors took over.
They wanted to reduce the socket count, especially when multiplex came out.
_________________
de
VE7ASO VE7ZSO
Amateur Radio Literacy Club. May we help you read better.
Steve Dow
ve7aso@rac.ca
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eraljust
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Post subject: Re: Question re odd tube. Posted: Feb Wed 29, 2012 4:59 am |
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Joined: Feb Wed 29, 2012 4:51 am
Posts: 2
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:( New to this site but does anyone know how to test a 1L6 tube? My Eico 628 does not have it on the chart. Thanks!
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Bugman
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Post subject: Re: Question re odd tube. Posted: Feb Wed 29, 2012 2:37 pm |
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Joined: Mar Sat 14, 2009 5:56 pm
Posts: 2014
Location: RI, 02885
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eraljust
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Post subject: Re: Question re odd tube. Posted: Feb Wed 29, 2012 3:20 pm |
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Joined: Feb Wed 29, 2012 4:51 am
Posts: 2
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 Many thanks to all whom responded! The 625 download was what i needed. Thanks again!!!!!
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Burnt Fingers
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Post subject: Re: Question re odd tube. Posted: Feb Wed 29, 2012 7:47 pm |
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Joined: Oct Sat 20, 2007 3:36 am
Posts: 13596
Location: New Hampshire
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Tubenut wrote: If the circuit isn't ultra-linear, use a 6360. You will have to rewire the socket though. Or a 6939 Carl
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