I have a harness from a boat anchor power supply I don't want to cut it up so I desoldered the male connectors from a circuit board 🛹
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Here they are with the harness (the big 🔌 plug top right connects to the PS)
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I just need to attach some wire/leads whatever to the male doodads
I think the pins remove and I attach wire or just get pins with wire and install
Thanks :tu:
Looks like I need to get the old pins out which are male on one end and through hole on the other
Then replace with male crimped to wire
Duh :loco
Idk if this is gonna be useful for anything
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I'm gonna try the plus and minus 5v on my Op-Amps xP
It would be cool 😎 to find a good use for it it's built like a tank. I just don't have an immediate need for 49v DC.
I need to figure out why when I measured across the filter cap I got 78v. :loco
Also these transformers are kind of a trip it looks like all of the terminals are on one side.
That fan is a beast too. Crazy how much lint dust bunnies 🐇 🐰 and mud daubers and stuff was inside.
I really like TO-3 they are cool I looked them up
The one with the sweet pic 😍 of two diodes is a twin rectifier :tu:
The 2N3055 is a 60v NPN transistor and apparently is still available.
Quote from: saturated on December 12, 2024, 06:01:58 PMThe one with the sweet pic 😍 of two diodes is a twin rectifier :tu:
Interesting. I've never seen that in a TO-3 package before. I guess that was before they had the big power bridge rectifiers we use now.
Thank you sir I roughly eyeballed the male pins and I came up with about 1/16 and that is about 0.063 then I see they have 0.062 and 0.93 (among others I presume)
Then I looked at the extractor tools and stuff and kinda groaned at the startup cost :grr
Sure would be nice to have those tools though after remembering the times I dealt with them in the past one time repairing a lamp :grr :lmao:
Quote from: saturated on December 12, 2024, 05:48:54 PMIdk if this is gonna be useful for anything
Old guard power supplies, not much use today.
*Guess* +/-5V was for old style Logic boards (where 5V supply was the standard) and +48V is standard for classic *telephone* lines.
The whole bunch might have powered some kind of telephone central, maybe in a small neighborhood or large Factory central.
Analog regulated supplies were very inefficient, hence the need for heatsinking and fan cooling; today any old computer supply can offer 5 Volts at 20-30-40 Amps for peanuts.
QuoteI'm gonna try the plus and minus 5v on my Op-Amps xP
Way too low for that, they will work but poorly.
QuoteIt would be cool 😎 to find a good use for it it's built like a tank. I just don't have an immediate need for 49v DC.
I need to figure out why when I measured across the filter cap I got 78v. :loco
+78V is raw unregulated voltage, then down regulated to very clean 48V
perfect for a 100W into 4 ohm power amplifier, single supply of course, like the Acoustic Control Corp Guitar and Bass amplifiers.
(https://i.postimg.cc/DzcrnxTr/Acoustic-118-Pwr.gif)
You already have the +78V supply, the rest is easy.
Driver and power transistors have modern equivalents, you would need to draw your own PCB.
Power transistors are selected/good quality 2N3055 and you already have them.
You can also use the aluminum sheet heatsinks.
You are 90% there.
You can also build any preamp you like to drive it.
+/- 5V supply can probably give you raw +14/16V if halves put in series.
Not much use for the single +5V one.
WOW :tu: a wealth of information :dbtu:
Thank you so much sir nice to hear from you <3)
HAPPY HOLIDAYS :tu:
Btw for clarification this is where it came from
My friends wife had an answering service company for years
This satchel/case is ridiculously heavy even with the PS out of it
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On the side opposite the PS all these little boards slide in
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The boards have some cool stuff like little multi switches
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And chips with legs like centipedes
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I had imagined something Phone related, was very close :)
Lots of nice stuff to cannibalize from those boards, at least a lot of good quality relays.