cheaper? - jarthel - Tube DIY Asylum

Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

Follow Ups Full Thread

Topic - why use a gm70 when 845 is current production (chinese though) and... - jarthel 18:29:34 04/03/07 (29)

Good question. no good answers IMNSHO - Ed Sawyer 19:08:25 04/05/07 (4)

Re: Fugly? - Dave-A 08:24:28 04/07/07 (0)

Sorry Ed, the arguments dont make any sense - Jim Doyle 01:04:00 04/06/07 (1)

Re: Sorry Ed, the arguments dont make any sense - nc 16:27:51 04/08/07 (0)

Re: Good question. no good answers IMNSHO - nc 19:20:53 04/05/07 (0)

Quality parts courtesy of the Taxpayers of the USSR - Jim Doyle 20:44:40 04/04/07 (3)

Is it still in production? (nt) - Triode_Kingdom 06:07:02 04/05/07 (2)

Unfortunately, not. - sser2 11:58:32 04/06/07 (0)

And why does it matter unless you are a manufacturer - nc 19:17:19 04/05/07 (0)

Because: - sser2 20:17:29 04/03/07 (2)

cheaper? - jarthel 20:47:42 04/03/07 (1)

Cheaper. - sser2 11:40:06 04/04/07 (0)

Re: why use a gm70 when 845 is current production (chinese though) and... - dave slagle 18:51:55 04/03/07 (16)

is there any advantage to having double the heater power? thanks (nt) - jarthel 20:48:36 04/03/07 (15)

Implies greater peak cathode current capability (nt) - Triode_Kingdom 05:44:16 04/04/07 (14)

Re: Implies greater peak cathode current capability (nt) - dave slagle 07:35:50 04/04/07 (13)

Re: which also doubles the voltage gradient across the cathode.... - Ivan303 11:28:56 04/04/07 (12)

It is not so bad. - sser2 11:51:31 04/04/07 (9)

Re: It is not so bad. - dave slagle 16:07:08 04/04/07 (8)

Agree. - sser2 19:38:14 04/04/07 (7)

Agree but not an issue because... - Triode_Kingdom 07:28:47 04/06/07 (5)

It depends. - sser2 12:31:23 04/06/07 (4)

tx-rectifiers-lclc-cmc-hum pot-filaments - nc 12:48:53 04/06/07 (3)

Right. - sser2 13:23:15 04/06/07 (2)

More research & an article by Lynn Olson - nc 14:14:00 04/07/07 (1)

Sure it won't hurt to have more. - sser2 16:46:26 04/07/07 (0)

Re: Agree. - dave slagle 20:33:44 04/04/07 (0)

Re: which also doubles the voltage gradient across the cathode.... - dave slagle 11:47:34 04/04/07 (1)

Me too... - Ivan303 12:00:31 04/04/07 (0)

Follow Ups

cheaper? - jarthel 20:47:42 04/03/07 (1)

Cheaper. - sser2 11:40:06 04/04/07 (0)