Three times in three weeks, when I turn the AL-1200 on, there is a flash and a bang from the RF compartment. This happens immediately at power up. Once it blew the diode that connects the b- to chass
_________________________________________________________ My instinct tells me it's the tube. There may be some loose pieces of crud floating around inside. Try removing the tube and cycling the amp
? Ed -- Some possibilities: 1. fruit flies. 2. baby spiders. 3. tiny leak in coffee cup that occasionally sits on top of amplifier. 4. cigar ashes. 5. intermittent VHF parasitic oscillation. If it s
Hi Ed, Regards from UPS destruction-headquarters. Reid Brandon from EIMAC suggested something very unique: Greyhound Bus Terminal-to-terminal package shipping. No more expensive than UPS; you pick it
Mr. Measures, you certainly have a keen sense of humor! You missed your calling. Have Phun. :-) 73 Louie _______________________________________________ Amps mailing list Amps@contesting.com http://l
_________________________________________________________ The tube would cause the fuse to blow instantly. I don't know whether it was a hard short or gas; I sent the tube to Ameritron and after they
_________________________________________________________ Ok, if you say so. My only experience with a known gassy tube was a 3-500Z in a Heathkit SB-1000. I powered up the amp after it had been sitt
? Bill -- What was the nature of the failure? _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
? This is no laughing matter, Louie, it's what the rascals do. Fed-Ex is no better. The Post Office is worse yet. Occasionally our retrofit kits seemingly disappear into their black hole and never s
? tnx. Gassy tubes usually don't blow the fuse, they draw anode-I on standby. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman
? agreed. It would have made an interesting lamp base if powered by a neon sign xfmr. ? I know of another case where a 1200A7 filament shorted to the grid, however, 0v from grid to filament would no
I agree whole-heartedly with Rich on this issue. At my office, we receive significant shipments of automation equipment, shipped by professional firms in appropriate packaging. Since last fall, our d
Dear Jim, FedEx paid off on the EMTRON DX-3 damage claim after 13 weeks of denial, only because WABC Radio and an attorney were involved. They paid because we asked for an independent third-party ana
? UPS (OOPS) insurance paid me on only one claim. It was a 3-500Z whose glass-envelope had appearantly been broken by a 3/8" steel rod that went through both sides of the box.. Cheers, Jim. ________