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Post pics of your builds.... - Page 15

post #211 of 8612
1/13/05 at 10:43pm

Bulgin Momentary switch

The switch was the 2nd most expensive component. The stepped attenuator was only 2 dollars more.
http://www.mouser.com/index.cfm?hand...oductid=566895
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post #212 of 8612
1/13/05 at 10:47pm
which stepped attenuator is that and where did you buy it from?
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post #213 of 8612
1/13/05 at 11:03pm

Alps 4 pole 23 position switch

The attenuator is available from Triode Electronics.
http://store.yahoo.com/triodeel/4pol24posals.html
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post #214 of 8612
1/13/05 at 11:32pm
I Think I'm finally done with my PPA. I changed to a larger volume knob that looks alot better.
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post #215 of 8612
1/14/05 at 12:14am
Quote:
Originally Posted by Secret Squirrel
The switch was the 2nd most expensive component. The stepped attenuator was only 2 dollars more.
http://www.mouser.com/index.cfm?hand...oductid=566895
holy cow $20!! well, at least it looks cool... how does it actually work? is it a push button that pops out when off or is it a digital button?
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post #216 of 8612
1/14/05 at 4:57am

momentary switch +flip flop

I had to use a " Flip flop " latch circuit to turn the pimeta on and off.
http://www.discovercircuits.com/PDF-FILES/4013cir.pdf
It was definitely a complicated route to add an on/off switch. I ended up using a max6816 to " debounce" the switch and make it much more reliable.
http://www.maxim-ic.com/appnotes.cfm/appnote_number/609
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post #217 of 8612
1/14/05 at 5:31am


looks complicated..

red wire goes here...... red wire goes there.... that's the scope of my expertise...
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post #218 of 8612
1/14/05 at 6:42am
some pics of my stuff...just a cmoy





added a window and an led which pulses along with the volume of the music

plus some pics of some random gear



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post #219 of 8612
1/14/05 at 2:49pm
Quote:
Originally Posted by Secret Squirrel
I had to use a " Flip flop " latch circuit to turn the pimeta on and off.
http://www.discovercircuits.com/PDF-FILES/4013cir.pdf
It was definitely a complicated route to add an on/off switch. I ended up using a max6816 to " debounce" the switch and make it much more reliable.
http://www.maxim-ic.com/appnotes.cfm/appnote_number/609
The switch if of a standard vandal resistant type switch which you can find in most places.

Regarding the debouncer - A simple capacitor and schmitt trigger could have done it for a lot less in price - Case and wiring look nice though (silver wires a teeny bit overkill on pimeta? - or never too OTT?!)
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post #220 of 8612
1/14/05 at 3:09pm

Tried the Schmidt trigger,but....

Tried the Schmidt trigger, but I found that the MAX6816 was much better to deal with switch bounce. As far as being over the top, this amp was more of a learning exercise than the final goal. Plus, I did not want to practice on my PPA.....yet
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post #221 of 8612
1/16/05 at 11:14pm

Gilmore Dynahi / Dynamite

Gilmore Dynamite










one amp board closeup (jpg)

rear jacks inside closeup (jpg)

front jacks inside closeup (jpg)
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post #222 of 8612
1/16/05 at 11:37pm
Wow! What a beauty! Sure looks like a powerhouse.. does it sound like it looks?
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post #223 of 8612
1/17/05 at 12:35am
Impressive work! Looks like a power house
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post #224 of 8612
1/17/05 at 12:48am
OMG that is sexy! Wish i had one to place my hd650 on top too!
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post #225 of 8612
1/17/05 at 1:45am
nice amp!

uh...how do you turn it on?
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