Analog Line Level Photo Gallery

Here’s my X-Altra Mini II. It uses an Apple Remote and takes Phono, CD, Tuner, DAC, Aux and Tape inputs. It uses the HPA-1 for the headphone output. It provides 2 unbalanced outputs, a balanced output and a record output.

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Heres pass p 1.7.
Brass heatsink, distributes heat equally, original Harris irf610, itt relays, siemens 0.1% resistors bought for attenuator but not installed, mkc caps paralleled with Russian petp capacitors.
Think its gonna be a nice preamp with its finished, haven't figured out chassis yet.
Don´t know, if they´re intended or not, but if not..... You might wanna remove the "shorts" before powering up 😉

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Not a build, just assembly 🙂 Muses72320 vollume control with Single-ended to balanced converter. Dont mind the wiring on the RCA, about to redo them ith twisted pairs solid core silver wire. 3 RCA inputs, 1 3.5mm input on front, XLR out....
I might have some problems with the voltage out, getting 9V on XLR at full gain and 0dB...i create a thread about it.

danny
 

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Not quite done, but this has been on my list for some time. Funny how you can find parts around the shop and use them, hence the block of wood for mounting the PCB.
 

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What do you think.

I have a class A SE mosfet amplifier and music source is topping E30 with custom rca wire, left and right summed to mono with 1k resistors and now i have done Equalizer APO mod where i can get mono output even the phase shifted effects and other stuff what music makers ever have make or simply by nature when recorded stereo sound.

I can tell you that i have found something new for many songs with that mod on that software .
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I had just one evening to build a stereo passive volume control for a power amp using whatever I had in my junk box.

Criteria was excellent quality components and it must be heavy so that it stays put.

I found a couple of chunks of Aluminum bracket for the weight, cut a couple of pieces of Baltic birch and drilled holes in a couple of aluminum plates - simple construction helped keep it under control and it all had to be done in a garage with gloves on due to freezing temperatures.

Had to be smart with use of available screws.

Found a nice Noble potentiometer, and a roll of Teflon coated small strands OFC signal wire.

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Good afternoon to everyone, below my second semi-serious creation, a dual mono hi fi preamplifier with operational amplifiers, complete with pre riaa section with RC load that can be sectioned via an external rotary switch... I carried out some measurements... what I have to tell you: it sounds very, very good... I like it a lot. You can see details that can certainly be improved (primarily the colors of the inverted channels)... please let me know your thoughts, I would be very happy. Good evening Ros
 

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