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Old 12th October 2012, 01:06 PM   #11
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Bob, will you be going to Burning Amp?
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Old 12th October 2012, 01:20 PM   #12
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Quote:
Originally Posted by Michael Rothacher View Post
Bob, will you be going to Burning Amp?
Hi Michael,

Unfortunately I will not be going to Burning Amp. It is something I've always wanted to do. Maybe next year.

However, the VinyTrak preamp will be going to Burning Amp and to the AES convention, courtesy of Jan Didden who will be bringing.

Cheers,
Bob
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Old 26th October 2012, 09:14 PM   #13
morinix is offline morinix  United States
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Hey, did you show at RMAF?
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Old 26th October 2012, 09:25 PM   #14
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Originally Posted by morinix View Post
Hey, did you show at RMAF?
Hi Robert,

Yes, we did. Jan Didden displayed it on his Linear Audio table.

It will be at Burning Amp and the AES Convention this weekend.

Cheers,
Bob
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Old 17th June 2013, 12:50 PM   #15
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Hi Bob
I bought LinearAudio vol4 but could not find the details how to make synthetic cartridge loading, only cement, plan and bricks ;-) is it maid of ie OPA2134 set @+10 gain and the inverted @-1 gain?
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Last edited by padamiecki; 17th June 2013 at 12:52 PM.
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Old 17th June 2013, 01:09 PM   #16
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Please write more about the switches resistor/synthetic load, switches loading the cartridge with resistors and caps, switches of damping change and how to connect mm cartridge to input, should it be direct to fets gate and 100k resistors, or with 10 Ohm resistor divider?
thank you in advance
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Old 20th June 2013, 02:32 AM   #17
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Quote:
Originally Posted by padamiecki View Post
Hi Bob
I bought LinearAudio vol4 but could not find the details how to make synthetic cartridge loading, only cement, plan and bricks ;-) is it maid of ie OPA2134 set @+10 gain and the inverted @-1 gain?
Hi padamiecki,

The VinylTrak preamp does not support synthetic cartridge loading. The part of the article that mentions synthetic loading was just informational, and in regard to noise in phono preamps. I apologize for the confusion this caused.

Cheers,
Bob
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Old 21st June 2013, 02:59 PM   #18
rsavas is offline rsavas  Canada
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Doug Self implemented the synthetic cartridge load ckt in the new 2012 pre-amp that was published in Elektor, have a look at that!!
Rick
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Old 21st June 2013, 03:48 PM   #19
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Originally Posted by rsavas View Post
Doug Self implemented the synthetic cartridge load ckt in the new 2012 pre-amp that was published in Elektor, have a look at that!!
Rick
Hi Rick,

Yes, I'm quite familiar with it. Probably not the way I would do it. I first did a phono preamp with synthetic loading back in the early 1980's. IIRC, it had a discrete X10 non-inverting input stage. A unity-gain op amp took that output and fed it back to the cartridge input through a 430k resistor to get the required 47k load.

Cheers,
Bob
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Old 24th June 2013, 08:51 AM   #20
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... and probably you would not show us the details, like the schematic?
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