RE: "How the film cap is wound does not GUARANTEE what will sound best in the circuit."

Tube DIY Asylum

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

Lew,

I MAY, in the future, go and gain SOLID experience measuring for the outer foil. Afterwards - I might disassemble the leads from this amp, and test for outer foil correlations. But if I did all this work, it would be so that I can build a second amp easier ( thinking JJ2A3 DC SET, stereo ).

I am not so sure I would give the information to others, who have done LITTLE or NO work at all. That would depend upon my intent, to be 100% amateur, or sell an item or two, every now and than. I don't know the answer to that.

I should measure the already - optimized Custom ALTEC crossovers' orientations too, may be easy to do, its a large unit, easy to parts-access.

BUT, I have forged a path here for others so inclined, a guy, say, like Nickel Core !! Others, using 100dB or higher speakers, can do this work, and document foil orientations, as we have discussed herein. If they ( or you ) wanna give out your findings, that is up to them.

Its sorta COOL when you do film cap orientations unprejudiced, 100% by ear. But its sorta smart IF you were to test for outer foil first, and NOT let that testing prejudice your listening determinations.

Lew. The adding of " more wire " within spans of this DC amp was a BIG thing, in terms of fleshing-out the music, and getting maximum dynamic contrasts. So EZ to hear on A7-800s !!! Warning !!! - too much wire SLOWS the pace, and loses the timing, and De Highs!!

I FINISHED wire and orientation of my right channel last night. I had the high gain ( 1/2 12AX7 ) Driver stage's Rk bypass cap 180 degrees BACKWARDS, and, being a dominant tube, with most of the amp's gain, it was EASY to A-B that. The presentation became " more real sounding " to me, guitar strings in the background became more realistic, when I reversed it and Wonder Soldered it in place.

I am getting WEARY of all this work. I have been " busting my chops " ( self-imposed) on building this ALTEC VOTT system, " as good as I can ", since I got the 825 VOTT enclosures last December. I spent all of 2015 listening to 515B woofers full range !! One night this week I had a wire-span idea while lying in bed, got up at 3 AM and listened till 4:20 AM !!

Right now, I wanna finish the Left channel, and hear music at home, maybe invite some of my friends from Church over to hear it. I am VERY impressed with this simple two-way ALTEC. Love the horn loading's effect on the 515B woofer.

So many ALTEC A7 VOTTs are done wrong !!! A shame.

Jeff Medwin

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Follow Ups Full Thread

Topic - Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - drlowmu 08:24:26 08/18/16 (20)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - 91derlust 01:03:15 08/21/16 (0)

100db speakers - like your A7 VOTTs?! You can't be serious. - Timbo in Oz 20:24:15 08/19/16 (8)

RE: 100db speakers - like your A7 VOTTs?! You can't be serious. - PakProtector 17:59:24 08/23/16 (6)

I would certainly not expect to hear nuances and small changes. - Timbo in Oz 22:08:36 08/23/16 (5)

RE: I would certainly not expect to hear nuances and small changes. - PakProtector 13:45:11 08/24/16 (4)

The 63s will run off two modified LEAK Stereo 20s, strapped and high-pass filtered at 150Hz - Timbo in Oz 14:50:19 08/24/16 (3)

KEF B139s in TL cabinets - Lew 11:10:00 08/27/16 (0)

Tim, The system will only be as good as the modded Leak Amps - drlowmu 00:29:46 08/25/16 (1)

Go away Geoff. - Timbo in Oz 03:19:38 08/25/16 (0)

RE: 100db speakers - like your A7 VOTTs?! You can't be serious. - drlowmu 15:32:29 08/21/16 (0)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - Lew 10:54:08 08/18/16 (5)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - drlowmu 12:40:47 08/18/16 (4)

"How the film cap is wound does not GUARANTEE what will sound best in the circuit." - Lew 14:29:39 08/20/16 (3)

RE: "How the film cap is wound does not GUARANTEE what will sound best in the circuit." - drlowmu 07:02:46 08/21/16 (2)

I know I'm getting old... - Lew 12:15:38 08/21/16 (1)

RE: I know I'm getting old... - drlowmu 14:05:23 08/21/16 (0)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - hennfarm 09:11:31 08/18/16 (3)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - drlowmu 12:49:57 08/18/16 (2)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - 91derlust 15:12:57 08/18/16 (1)

RE: Initial Report, Film Cap 180 degree orientation - Employing new-style Clip Leads - drlowmu 09:40:01 08/19/16 (0)

Follow Ups

RE: "How the film cap is wound does not GUARANTEE what will sound best in the circuit." - drlowmu 07:02:46 08/21/16 (2)

I know I'm getting old... - Lew 12:15:38 08/21/16 (1)

RE: I know I'm getting old... - drlowmu 14:05:23 08/21/16 (0)

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