Everything posted by GrindingThud
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The Multi Amp aka Dynalo Mk2
For headamp operation, is it recommended to put a relay delay on the output or is it stable enough during startup to not need that?
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The Multi Amp aka Dynalo Mk2
I was thinking three output jacks, one balanced and two SE.
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The Multi Amp aka Dynalo Mk2
Thanks!
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The Multi Amp aka Dynalo Mk2
Thanks! I think I'm going to attempt a 20V (21V) build and try to use the same PS from the KSA5. The boards are small enough I think it will package well. Which resistors get changed out?
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The Multi Amp aka Dynalo Mk2
This does look like a fun build. What's it swing VRMS?
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The official Head Case broadcast thread
- The official Head Case broadcast thread
Wife is grooving to the mix.... She sez mo sub bass- Whisk[e]y-Case
- The official Head Case broadcast thread
Outstanding mix last week.....enjoying it now.- The official Head Case broadcast thread
Wooga Wooga Wooga- krell ksa5 klone
Cool, mine was just over 110mv unmatched.- krell ksa5 klone
Very nice! I'm curious, after matching, what was your DC offset without the servo in?- On Bacon
- The official Head Case broadcast thread
Yum!- Recommend a shop vac?
This little guy works great: http://www.lowes.com/pd_215726-20097-9302011_0__?productId=3339728&Ntt=shop+vac&pl=1¤tURL=%3FNtt%3Dshop%2Bvac&facetInfo= I use it to suck the bilge of my boat dry after races and other wet use. Small, easy to handle, and great suck. As for Hvac overflow. You should have two pipes. One from the condenser inside the unit to the outside world. If it gets plugged or the unit freezes up, water overflows to the pan. Pan should have a drain also. Use compressed air to blow out the clogged lines. Your garden hose from below should work also....just don't overflow back into the house. Orange is just mold goop....no biggie. A little bleach will tame that. The main thing is to make sure the heat exchanger pan drain is clear....it's most likely clogged at the trap at the air handler. DO NOT use drain cleaner...it will eat the aluminum heat exchanger.- The official Head Case broadcast thread
Doh- What are you listening to Part the Third
- The Official Head-Case Photography Thread.
- Coconut Audio power cable, connected and transporting energy
Does that one have the vegan option? "It is like extra sound got delivered to me from heaven or from distant alien planet through warmhole" http://www.coconut-audio.com/xxx.html- What are you EATING right now?
- krell ksa5 klone
That is good news! Now stop probing and get to listening.- krell ksa5 klone
Before you pull it apart, check the diodes at the input to the op amp (1N914 between the heat sinks). There are a number of resistors between your accidental short and the input/output. I doubt you fried a transistor. The diodes however.....zap, straight from V- to ground. I bet you fried that. Worth a look. Also, listen to it......scab some earbuds on it and hook up a sleazy input source.....you'll know if it's broke.- krell ksa5 klone
I'd push the rails to +/- 35 before going balanced. If a pair ever showed up at a meet we could bridge them.- krell ksa5 klone
I think fishski13 had some links earlier to photos of a single chassis build he did....could see a lot of the wiring. http://s23.photobucket.com/user/fishski13/media/012_zpsdfd46a29.jpg.html I can't believe you're not listening to it yet with just alligator clips. AC safety ground tied to enclosure - yepSignal input ground tied to enclosure through ground loop breaker (0.1uF X/Y-rated cap in parallel with 10 ohm 5W resistor)? - I floated mineInput RCA jacks isolated from enclosure - yepVolume pot tied to enclosure? - only by the mounting shaft on my ALPSOutput jack isolated from enclosure - yepOutput ground connected only to output jack, never connected to enclosure - yepDoes the 0V line from the PSU just float, or is it tied to the enclosure through a ground loop breaker? If not floating, can 0V line from PSU and input signal ground be tied to enclosure through the same ground loop breaker? - mine made noise when floatedShould output ground on the output jack be tied to the output ground on the amp board, or go directly back to the 0V line from the PSU? - I used the amp board, I've seen the other way like in the beta22...I think fishski13 did it that way.- krell ksa5 klone
PSU works fine with nothing attached. If it is the old one with early board runs....make sure you have the grounding error fixed discussed earlier in the thread. - The official Head Case broadcast thread
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