Re: Speaking of organ tubes........

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In Reply to: Re: Speaking of organ tubes........ posted by Jimmy on September 28, 2004 at 19:32:51:

Jimmy,
Thanks for the additional information about the tube mkers relabelled or organ use. I had only seen Sylvania and RCAs labelled for organs, with a couple of Mullards for less common types, but of course Raytheon and others were used.
Based on my organ tube purchases, it rings true that organ makers chose the models carefully and then selected the tubes. The 8 "Baldwin"*** 12AX7s I have are all quite close and all 16 triode sections are probably under 10% in variation. They must have selected crefully to have adjacent notes on the organs be consistent in timbre and output.
***I mistakenly wrote "Hammond" organ for some 12AX7s I have, but these are "Baldwin"!
The organ tubes I have are all nice. I look for organ labels as well HP or Textronix becasue of these companiies' selectivity. I have 4 Textronix RCa cleartop 12AU7s and the 8 sections are about 2% apart! HP too in particular chose very nice models for their instrumentation tubes- I have HP labelled: Amperex 12AU7s, RCA cleartops, and Amperex 6DJ8s.
I think tube organs really got going post WWII when the miniature triodes were available and I've actually never seen an electronic organ made before the early 1950's. It would be interesting to know more about it- there must be many books on the subject! Of course, the digital/sampling/synthesizer/MIDI revolution is perfect for organs and organ technology today has jargon heavy enough to sink ships! I subscribed to the Allen Organ Owners newsgroup and those fellows were plugging laptiops into three manual organs like the pit crews do to Formula One cars..
I'm not sure there were SE organs, but I think Theremins were SE!
Cheers,
Bambi B

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Follow Ups Full Thread

Topic - Help needed Identifying Conn organ 12au7s - anumber1 18:31:58 09/27/04 (6)

These are absolutely.. - Bambi B 15:49:17 09/28/04 (5)

Thanks! (nt) - anumber1 21:10:10 09/29/04 (0)

Re: Speaking of organ tubes........ - Jimmy 19:32:51 09/28/04 (3)

Re: Speaking of organ tubes........ - Bambi B 20:01:52 09/28/04 (2)

Re: Speaking of organ tubes........ - Jimmy 05:45:16 09/29/04 (1)

Re: Speaking of organ tubes........ - 6SJ7 18:46:36 09/29/04 (0)

Follow Ups

Re: Speaking of organ tubes........ - Bambi B 20:01:52 09/28/04 (2)

Re: Speaking of organ tubes........ - Jimmy 05:45:16 09/29/04 (1)

Re: Speaking of organ tubes........ - 6SJ7 18:46:36 09/29/04 (0)

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