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| chuck foster:
very interesting tube .......... or should i say valve :scratch: i used to repair old radios and guitar amps, the radio voltages were no big deal but the guitar amps were scary!! i worked on a bass amp for a guy and the output tubes were #6550...........i think there were 8 of them and they ran 750 plate volts. and 750 volts hurts like :zap: well you know. just some of my ramblings for night. chuck :wave: |
| John Swift:
Hi Dave Radio Spares or RS Components as the call them selves now stock a 3.5w multitapped output transformer 210-6475 if you decide to build some thing with the ecll800 valves , some people have experimented with ht voltages of only 20v to 45v the picture of the ecll800 reminded me of an early operational valve amplifier If i remember correctly at one time grundig sold radios as kit to avoid the taxes the kit was infact a ready made radio without the valves fitted ! John |
| Bluechip:
Hi John Long since gone to the tip. I think I took them the next day. As posted, I've no idea if they were OK. Just got a bit nostalgic ... That Op-Amp looks interesting. Some stuff I worked on when I first started work had valve Op_Amps, they were ECC81 or 12AT7's rather than ECC82. Them and the damn great 6080 double triodes .. used to drive differential relays .. I think that's what they were called .. The ones that are On - Off - On, rather than On - On, as per a normal C/O relay Days long gone ... Dave BC |
| andyf:
Dave, the adverts in your link to the Loewe valve showed they could be sent in for repair as long as the glass was intact. Not a service offered by IC manufacturers today. That said, not many modern ICs cost half a week's wages! Andy |
| Bluechip:
Hi Andy Right! Pity they don't fix things like they used to do. I've got a duff BC108 here could benefit from being rebuilt ... :scratch: Dave BC |
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