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Grebe Synchrophase AC6
#9

I decided to work with the original cone, as fragile and warped as it was, and used a piece of leather that I had laying around from former player piano days to form a new surround.  The project was quite a bit less successful than i had hoped visually, but given the condition of the cone, I was able to produce a working speaker.  In fact, since it is self powered as far as the field is concerned, I hooked it up to my Scott 16A and it sounds remarkably good!  There was tape on the cone that I had to remove and, of course, that took the top layer of paper away.  To strengthen the fragile paper, I coated it with a layer of lacquer and tried to color in the tape damage.  the leather surround fit poorly as the cone was so warped around the edges. Yet, all said and done, it works quite well.  A silicone rectifier was hidden in the pedestal and the  wires hooked to the copper oxide rectifier are for looks only.  The screws around the surround hold down brackets will be replaced with rivets as in the original - or maybe not as this allows much easier repair.  Haven't decided.

       

Next is the power supply.  it consists of the power transformers (2 inside the box, the terminal block and rectifier tube, the filter choke and the capacitor can.

       

I think I have a lifetime supply of wax from the capacitor box!

[attachment=15658]


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Messages In This Thread
Grebe Synchrophase AC6 - by rfeenstra - 02-24-2018, 08:43 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 02-24-2018, 09:24 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 02-26-2018, 12:01 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 02-26-2018, 12:50 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 02-26-2018, 09:01 PM
RE: Grebe Synchrophase AC6 - by Arran - 02-26-2018, 11:48 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 02-27-2018, 12:30 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-05-2018, 12:50 AM
RE: Grebe Synchrophase AC6 - by Radioroslyn - 03-05-2018, 11:06 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-05-2018, 11:55 AM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-05-2018, 12:20 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-05-2018, 12:52 PM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-05-2018, 01:03 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-05-2018, 05:51 PM
RE: Grebe Synchrophase AC6 - by Radioroslyn - 03-05-2018, 07:49 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-05-2018, 10:14 PM
RE: Grebe Synchrophase AC6 - by Arran - 03-06-2018, 01:30 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-11-2018, 07:40 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-12-2018, 03:16 AM
RE: Grebe Synchrophase AC6 - by Radioroslyn - 03-12-2018, 08:45 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-12-2018, 12:05 PM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-12-2018, 12:21 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-12-2018, 12:28 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-12-2018, 12:43 PM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-12-2018, 02:08 PM
RE: Grebe Synchrophase AC6 - by EdHolland - 03-12-2018, 02:57 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-12-2018, 05:31 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-13-2018, 09:50 PM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-15-2018, 11:14 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-15-2018, 09:36 PM
RE: Grebe Synchrophase AC6 - by EdHolland - 03-15-2018, 11:20 PM
RE: Grebe Synchrophase AC6 - by Arran - 03-15-2018, 11:49 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-16-2018, 12:28 AM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-16-2018, 10:44 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-16-2018, 02:19 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-16-2018, 07:44 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-16-2018, 11:58 PM
RE: Grebe Synchrophase AC6 - by EdHolland - 03-17-2018, 01:53 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-19-2018, 01:22 AM
RE: Grebe Synchrophase AC6 - by EdHolland - 03-19-2018, 05:45 PM
RE: Grebe Synchrophase AC6 - by KCMike - 03-19-2018, 06:16 PM
RE: Grebe Synchrophase AC6 - by gregb - 03-19-2018, 06:44 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-19-2018, 11:34 PM
RE: Grebe Synchrophase AC6 - by Eliot Ness - 03-20-2018, 10:21 AM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-20-2018, 10:39 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-20-2018, 12:58 PM
RE: Grebe Synchrophase AC6 - by EdHolland - 03-20-2018, 01:22 PM
RE: Grebe Synchrophase AC6 - by Phlogiston - 03-20-2018, 01:57 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-20-2018, 02:43 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-20-2018, 11:37 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 04-05-2018, 10:09 PM
RE: Grebe Synchrophase AC6 - by Phlogiston - 04-06-2018, 11:47 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 04-06-2018, 01:16 PM
RE: Grebe Synchrophase AC6 - by EdHolland - 04-07-2018, 12:04 AM
RE: Grebe Synchrophase AC6 - by rfeenstra - 11-22-2018, 01:28 PM
RE: Grebe Synchrophase AC6 - by Arran - 11-22-2018, 10:38 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 11-22-2018, 11:39 PM
RE: Grebe Synchrophase AC6 - by rfeenstra - 03-02-2019, 04:26 PM
RE: Grebe Synchrophase AC6 - by KCMike - 03-02-2019, 06:03 PM



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