Hello to all, I have just purchased a Graaf GM 200, was wondering if anyone here has any experience or advice, like bias voltage settings, and also does anyone know if the pl500, pl504 and 27gb5 are all the same tube?
Been awhile since I have posted here, been busy at work, I have a set of Fourier Panthere's that have been working nicely for the last year, also have 3 sets of NYAL OTL 3's 2 sets are performing flawlessly and the last set I am going to do a frame off restoration.
My last purchase befor the Graaf was a 6336 22 wpc otl made by R.L.Merz
I really like it as well, for 22 watts it is quite impressive.
Enough about me,
I will gladly pay for any help or info provided, ie schematic diagram and alignment process...
OTL's RULE !!!
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Topic - GRAAF GM 200 - rhinohifi714 19:56:37 01/31/12 (60)
- finally determined a use for this amplifier... - rhinohifi714 19:30:51 02/17/15 (3)
- RE: finally determined a use for this amplifier... - berni 12:53:05 02/21/15 (2)
- RE: finally determined a use for this amplifier... - rhinohifi714 19:00:01 02/22/15 (1)
- RE: finally determined a use for this amplifier... - berni 13:58:58 02/23/15 (0)
- RE: GRAAF GM 200 - MIk- 08:24:50 05/24/13 (0)
- RE: GRAAF GM 200 - johntyblue 00:28:55 02/06/13 (1)
- RE: GRAAF GM 200 - Mark S Allen 22:15:55 08/14/15 (0)
- RE: GRAAF GM 200 - Mark S Allen 14:58:22 02/26/12 (32)
- RE: GRAAF GM 200 - Frederichabert@hotmail.com 08:28:24 08/12/15 (4)
- RE: GRAAF GM 200 - Mark S Allen 22:05:29 08/14/15 (3)
- RE: GRAAF GM 200 "My Precious!" - Frederichabert@hotmail.com 04:27:19 08/16/15 (2)
- RE: GRAAF GM 200 "My Precious!" - rhinohifi714 09:09:44 08/20/15 (0)
- RE: GRAAF GM 200 "My Precious!" - Banat 05:18:05 08/16/15 (0)
- RE: GRAAF GM 200 - LuisVinhas 12:31:00 01/07/15 (5)
- RE: GRAAF GM 200 - berni 09:41:56 01/09/15 (4)
- RE: GRAAF GM 200 - LuisVinhas 06:08:54 01/10/15 (3)
- RE: GRAAF GM 200 - Lew 07:48:44 08/21/15 (0)
- RE: GRAAF GM 200 - LuisVinhas 08:54:06 01/17/15 (1)
- RE: GRAAF GM 200 - Mark S Allen 22:20:46 08/14/15 (0)
- RE: GRAAF GM 200 - i.browne@optusnet.com.au 19:30:21 10/22/13 (4)
- RE: GRAAF GM 200 - berni 12:06:43 10/29/13 (3)
- RE: GRAAF GM 200 - Mark S Allen 22:28:40 08/14/15 (0)
- RE: GRAAF GM 200 - i.browne@optusnet.com.au 14:24:42 10/29/13 (1)
- RE: GRAAF GM 200 - berni 01:29:13 10/30/13 (0)
- RE: GRAAF GM 200 - piggo 23:29:19 10/12/12 (0)
- RE: GRAAF GM 200 - ideiaprint 12:33:59 09/23/12 (13)
- RE: GRAAF GM 200 - Mark S Allen 12:37:05 11/26/12 (12)
- RE: GRAAF GM 200 - berni 06:16:21 04/07/13 (10)
- RE: GRAAF GM 200 - rhinohifi714 19:53:47 04/09/13 (8)
- RE: GRAAF GM 200 - berni 10:30:35 04/10/13 (6)
- RE: GRAAF GM 200 - rhinohifi714 05:40:49 04/11/13 (5)
- RE: GRAAF GM 200 - Frederichabert@hotmail.com 01:37:36 08/13/15 (0)
- RE: GRAAF GM 200 - berni 12:19:47 05/15/13 (1)
- RE: GRAAF GM 200 - berni 02:49:31 05/27/13 (0)
- RE: GRAAF GM 200 - berni 12:19:23 05/15/13 (0)
- RE: GRAAF GM 200 - berni 05:58:12 04/11/13 (0)
- RE: GRAAF GM 200 - berni 22:46:08 04/09/13 (0)
- RE: GRAAF GM 200 - berni 13:45:52 04/07/13 (0)
- RE: GRAAF GM 200 - berni 04:22:58 04/07/13 (0)
- RE: GRAAF GM 200 - tyu 05:21:35 02/28/12 (0)
- RE: GRAAF GM 200 - tyu 06:32:50 02/03/12 (4)
- RE: GRAAF GM 200 - rhinohifi714 18:31:11 02/03/12 (3)
- RE: GRAAF GM 200 - lone gunmen 07:57:24 02/04/12 (0)
- RE: GRAAF GM 200 - rhinohifi714 18:35:31 02/03/12 (1)
- RE: GRAAF GM 200 - rhinohifi714 20:47:09 02/03/12 (0)
- RE: GRAAF GM 200 - 6AS7_6SN7 23:54:30 01/31/12 (12)
- RE: GRAAF GM 200 - drwkng 18:33:47 02/01/12 (2)
- RE: GRAAF GM 200 - drwkng 18:39:38 02/01/12 (1)
- RE: GRAAF GM 200 - rhinohifi714 19:56:42 02/01/12 (0)
- FWIW the GRAAF GM 200 and the GM 20 are quite different. - Ralph 12:26:40 02/01/12 (8)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - R 14:06:04 02/01/12 (2)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - airheadair 19:26:30 02/02/12 (1)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - rhinohifi714 05:58:40 02/03/12 (0)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - Lew 13:18:26 02/01/12 (4)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - Banat 14:40:51 02/01/12 (3)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - Lew 15:04:17 02/01/12 (0)
- The GM20 has some similarity to the Cecil Hall patent.nt - Ralph 14:49:58 02/01/12 (1)
- RE: The GM20 has some similarity to the Cecil Hall patent.nt - Banat 16:06:13 02/01/12 (0)
- RE: GRAAF GM 200 - Lew 23:04:01 01/31/12 (1)
- RE: GRAAF GM 200 - rhinohifi714 07:20:35 02/01/12 (0)