Hoffman Amplifiers Tube Amplifier Forum
Other Stuff => Solid State => Topic started by: shooter on May 16, 2018, 09:46:12 pm
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since I only need to mow every other day...
I bought this 4 channel TS, from a QX8000, 3 outta 4 channels are good :blob10:
I re-drew the schematic as it was, except now legible, but still upside down :laugh: (haven't proofed much)
Got a 50w SS PA, 2channel kit I built, and a pair of Bose 10.2 II. once it's a proven concept, I'll fix the broke channel, use 1 of the RCA stereo 10Watters I inherited to drive a pair of Jenson 100W(PK?) jsm301's
The screenshot show ~~3:1 gain, in was 1.19ishvacrms
I adjusted knobs for max V out, need another tone source to see where max clean ends, I took it down to 130mVrms in with ~~422mVrms out
:think1: adding gut shot
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Thanks! here's what I had to work with for original, the crease runs right through there :think1:
the layout is pretty good.
Hope to gator clip the PA next, then it's scare the neighbors :laugh:
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did a quick sound-check using one of the RCA didies I have, sounds like a re-build is in order on the TS board. The middle 40% of both T & B are ~ok, but outside that things go downhill fast. I dug up my SS PA, it's actually a mono-block (K8060) :think1: but it's rated 100Wrms into 4ohms! I'll probably fire it up and just run each side 1adatime and listen, don't expect any real change, except LOUDER :icon_biggrin:
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The grass ain't knee high so;
got the AC mechanicals in place, fiberglass sucks!
settled on a hinged back, I'll mount the board, speaker out, and aux in, on the back.
settled on a 1/4" jack in with volume on the front panel, RCA AUX IN can be used with a $30 Bluetooth, or whatever.
need to swap out the big caps because of clearance.
I ran an amp 8hrs/day X 3days, maybe 5 degrees above ambient air, clean crisp sound
not bothering with in-chassis speakers
the sky looks WAY better in reality :laugh:
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fitted all the mechanicals, working on harness next;
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between fixin lawnmowers and cars and porches and... I managed to get some wiring done. My cap order got canceled so waiting on the last caps and a molex to finish it off.
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Your builds are beginning to take on a certain artistic flare. I like.
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Thanks , he who uses a toaster oven :laugh:
The MRI faceplate has been kicking around my barn for many years, I just knew it needed a new purpose.
I am hoping to "catch the eye of the 2?yr olds" as they depart mom & dads basement :icon_biggrin:
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Phase II has been kickin around awhile;
center channel, 60-ish W Brick kit I built for something else. That will drive an Altec 15", and this JBL, I have the voice of the theater cross-over that i'll be using. the horn is a PITA. I started thinking hand tools only, I'm up to 2 dewalt 18V's per session :icon_biggrin:
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Done! mostly, screwed up a connector, so front jack isn't wired. played 2hrs in the chassis, cool runnin
you can definitely tell a low quality MP3 from High quality!