Search found 4 matches
- Mon Jul 06, 2015 10:16 am
- Forum: Valves
- Topic: Bill Beard BB100 valves
- Replies: 6
- Views: 7345
Re: Bill Beard BB100 valves
Thanks for the replies! I had thought of installing a thermistor but I wanted to keep the amp original and avoid installing something that would get very hot. There's not much room where the mains connector comes in. I used thermionic rectifiers in my own amp with a choke input filter to avoid that ...
- Sun Jul 05, 2015 4:26 am
- Forum: Valves
- Topic: Bill Beard BB100 valves
- Replies: 6
- Views: 7345
Re: Bill Beard BB100 valves
Thanks for the reply! I'm in Australia so a long way from any British people with experience of these amps. I did manage to repair it without a manual, it helped that it's really two separate mono amps only sharing a common power transformer. That made comparing the two channels a useful strategy. T...
- Thu Jun 25, 2015 6:37 am
- Forum: Valves
- Topic: Bill Beard BB100 valves
- Replies: 6
- Views: 7345
Bill Beard BB100 valves
Hi all, I have been asked to repair a BB100 with a dead channel Before I start however it's obvious someone has installed the wrong valves in the preamp section. Instead of 4 ECC81s and 2 ECC82s there is only one ECC81 and the rest are ECC82s. There are no labels on the amp itself to indicate what t...
- Thu Jun 25, 2015 6:30 am
- Forum: New Users
- Topic: Hello and question
- Replies: 0
- Views: 2612
Hello and question
Hi all, I am an engineer and audio and valve enthusiast in Melbourne Australia. I have built several amplifiers over the years and love the sound and look of valves. I have been asked to repair a Bill Beard BB100 that had lost one channel. It has been "got at" by someone before me and the ...