572B tube data for heathkit 3117

[galaxy95Tman]

Was hoping someone has tube testing data for the 572B tube for a heathkit 3117? I have the data book for 3117 but 572B is not listed. Done a bunch of searching on net and came up dry. Thanks for any help.

[Night Crawler]

http://www.g8wrb.org/data/Sve ... f/572B.pdf

http://www.hebertech.com/view ... b-572b.pdf

[MDYoungblood]

You will probably have to cross reference the spec's with a tube on your chart, that tube wasn't in production when Heathkit went out of business. If you can't match it don't guess, those tubes run about $80 . Just put it back in the amp and see what it does.

3's

Greg

[Night Crawler]

If it has the info for an 811 use that.

[galaxy95Tman]

I have a listing for an 811A. It says under the data "requires jumper from plate cap to pin 5 of any other tube socket." Is plate cap the wire/connector that goes on top of tube? Where is pin 5? Thanks

[Night Crawler]

Is plate cap the wire/connector that goes on top of tube?

Yes

I have a listing for an 811A. It says under the data "requires jumper from plate cap to pin 5 of any other tube socket." Where is pin 5?

There isn't any fifth pin on an 811 if I'm interpreting what they're telling you to do correctly is to connect a jumper from the plate cap to any other tube socket that has a fifth pin.

[galaxy95Tman]

Counting the pin holes would that be from left to right, 5th hole?

[Night Crawler]

This is for the tube sockets viewed from the bottom if your looking at them from the top reverse it.
http://electriciantraining.tp ... 178_24.htm

[galaxy95Tman]

Thanks Night crawler!