The Phonoclone and VSPS PCB Help Desk

[Tazzy]

To show my interest in this project:

When is the next version/batch of VSPS available?

[rjm]

There were no problems found with the current VSPS revision, so no reason to change anything. The next order will be in a couple of weeks.

-rjm

[ChrisMmm]

Hi, just getting back into vinyl after over 10 years of CD. I am considering building the Phonoclone for my Denon DL103.
Having built a couple of op-amp headphone amps successfuly using battery power supplies I am wondering if the phonoclone would work well this way. I know it can be done but any opinion as to effect on sound quality. I would be using 16 AA cells to produce a +/-12v split supply. Possibly use some small caps right next to the ICs but otherwise no ps smoothing caps.

Also does the output coupling cap need to be so large? Would 2uF be adequate as more choice exists for reasonable sized quality caps at that size.

Thanks in advance,
Chris

[Tazzy]

RJM, Thought I recieved hints about a improved version of the VSPS.
No problem if there isn't going to be any

[brainspex]

Now I finished my phonoclone successfully. I had some problems with hum and rewired the ground a few times. Now its fairly free from hum - only a very silent hum while turning the volume to the right end. Noise is not an issue even if its present at high volume levels. I used generic components for all parts, regular elko caps, WIMA MKP-10 RIAA-Caps, metal film resistors 0,1%, no sophisticated power supply regulation. In fact I used a 2x12V lead acid battery and a desktop power supply 2x12V/25W - I couldnt find a difference yet - but the circuit is not warmed up completely. Noise has some hash, even from the lead acids battery. So its not implied by the power supply. I used another PCB (half euro size) for both channels. First impression of the first 10 records: it sounds fine using my shelter 901 compared to my cyrus phono stage and my lehmann black cube SE (and far beyond my kitchens denon PM720 phono input).

Next steps: Build the whole thing a second time, using sophisticated material like WIMA FKP-2, Black Gate, Mundorf Audio Caps and compare the sound.

pictures here:

[rjm]

Announcement:

The deadline to order VSPS and Phonoclone PCBs is Sunday, Sept 11th. I must receive your payment before then. Just so you know, Order 4 wont be until January next year, though I'll get a couple of extra boards done this time for the "emergency reserves"..

Details at the ordering page, here.

-rjm

[DWong]

RJM,

I have sent you an email yesterday and am awaiting your reply for the shipping cost before I could paypal the money to you.

Dennis

[PauSim]

Quick question: I just bought myself a Denon DL110. VSPS or Phonoclone?

Thanks

[rjm]

VSPS.

as with all high output MCs...

[PauSim]

YGM. Hope it´s not too late.