Search found 4749 matches

by mediatechnology
Tue Jul 27, 2021 7:24 am
Forum: Pro Audio Design
Topic: Texar Prism clone prototype
Replies: 14
Views: 28950

Re: Texar Prism clone prototype

I'm seeing long lead times on very basic commodity parts like LM-series regulators, common transistors, Wima caps and film resistors. I've been having some luck finding out-of-stock Mouser items at Digi-Key recently. I'm reluctant to suggest it but have you looked on ebay? I've found some US-based a...
by mediatechnology
Mon Jul 26, 2021 12:40 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 227
Views: 254011

Re: Phono Transfer System Construction Information

Studer made a layback machine?
Wow, that brings back memories of the MCI JH-110 1" layback I used to have to maintain at DSL.

The A80 VU Mk II … IV looks to have a low impedance head transformer-coupled to the preamp.
The MC preamp might be a better fit.
by mediatechnology
Sun Jul 25, 2021 5:56 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 227
Views: 254011

Re: Phono Transfer System Construction Information

Sure, I will have to rescan them as I altered the original scans.
A road map should would help. Thanks!
by mediatechnology
Sun Jul 25, 2021 5:54 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 418
Views: 170219

Why Is The CDC Quietly Abandoning The PCR Test For COVID?

Why Is The CDC Quietly Abandoning The PCR Test For COVID? We have detailed (most recently here and here) the controversy surrounding America's COVID "casedemic" and the misleading results of the PCR test and its amplification procedure in great detail over the past few months. As a reminder, "cycle...
by mediatechnology
Sun Jul 25, 2021 12:37 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 151
Views: 179742

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

Nice work Mike! I would have used a floating attenuator if I didn't have the need for unbalanced outputs. The ground on the one I have should be liftablle however since for balanced loads the net current in the ground is zero. That assumes perfect resistor matching so at the lower steps the error mi...
by mediatechnology
Fri Jul 23, 2021 10:11 am
Forum: Pro Audio Design
Topic: Stereo Width Control For Mastering Using the LR +/-S Method
Replies: 12
Views: 29426

Re: Stereo Width Control For Mastering Using the LR +/-S Method

The first run of Stereo Width Controller boards work perfectly.

Image
Stereo Width Controller PC Board

Should have done this a long time ago...
by mediatechnology
Thu Jul 22, 2021 4:24 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 418
Views: 170219

Eric Clapton Says He Will Not Play Any Venues Where Fans Are Required to Be Vaccinated

Eric Clapton Says He Will Not Play Any Venues Where Fans Are Required to Be Vaccinated Music icon Eric Clapton has announced that he will not play any concert or venue where fans are required to be vaccinated to attend. Clapton made headlines in May when he announced that he had a terrible reaction...
by mediatechnology
Thu Jul 22, 2021 4:21 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 227
Views: 254011

Re: Phono Transfer System Construction Information

For both 15 and 30 IPS?

I see what I think is a bias trap in the preamp front end.
Does this machine record?

Can you send me some large-format scans by email?
I can assemble them back into a big image.
I'm wondering if we could put the MM at the headstack and then use the EQ on the existing board.
by mediatechnology
Wed Jul 21, 2021 8:44 pm
Forum: Pro Audio Design
Topic: The Studer "90° Filter" Stereo to Mono Summer/Recorrelator
Replies: 10
Views: 3810

Re: The Studer "90° Filter" Stereo to Mono Summer/Recorrelator

I had a chance today to listen to a bunch of different songs folded to mono and I have to conclude that Studer was onto something when they took the Dome filter and used it to improve mono fold-down. I compared the stereo presentation to conventional summed mono and the Studer 90 degree filter. Two ...
by mediatechnology
Wed Jul 21, 2021 3:29 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 227
Views: 254011

Re: Phono Transfer System Construction Information

Based on the termination resistance (56K) I'm wondering if the MM board would be a better option.