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Electronics Today International (Australia) April 1977 "The Rockshow Watts Backstage" Rod Stewart pg 17. (Phase Linear 700B's) NOTE: This proceeds the Clair System's which arrived (2) years later with the Phase Linear 700 series 2 amplifiers...

Electronics Today International (Australia) February 1980 Pioneer PL-L1000 (a.k.a. Phase Linear 8000) (see page 144) https://www.americanradiohistory.com/Archive-Electronics-Today/Australia/80s/ETI%201980-02%20February.pdf

Electronics Today International (Australia) Aug 1980 "Modern Turntable Technology" (includes Pioneer PL-L1000 pg 132) (a.k.a. Phase Linear 8000) (see page 132) https://www.americanradiohistory.com/Archive-Electronics-Today/Australia/80s/ETI%201980-08%20August.pdf

High Fidelity March 1976 "Noise Reduction Equipment" (includes Phase Linear 4000 & 1000) pgs 53, 54 https://www.americanradiohistory.com/Archive-High-Fidelity/70s/High-Fidelity-1976-03.pdf

High Fidelity Vol. 38 No. 10 October 1988. Sounding Off: An Interview with Bob Carver of Carver Corporation by Gordon Brockhouse NOTE: (follows page 48 at page A1) https://www.americanradiohistory.com/Archive-High-Fidelity/80s/High-Fidelity-1988-10.pdf

Popular Mechanics April 1974. "Those Monster Power Amplifiers" Not Louder But Better by Ivan Berger pgs 133-136) (includes Phase Linear 700) https://ia801301.us.archive.org/27/items/PopularMechanics1974/Popular%20Mechanics-04-1974.pdf

Radiorama June 1976. Phase Linear 4000 (Italian reprint of Popular Electronics July 1975) http://www.introni.it/pdf/Radiorama%201976_06.pdf

Radiorama March 1978. Phase Linear 200 (Italian reprint of Popular Electronics October 1976) http://www.introni.it/pdf/Radiorama%201978_03.pdf

Radiorama November 1979. Phase Linear 5000 (Italian reprint of Popular Electronics December 1977) http://www.introni.it/pdf/Radiorama%201979_11.pdf

Radiorama April 1981. Phase Linear 6000 (Italian reprint of Popular Electronics February 1979) http://www.introni.it/pdf/Radiorama%201981_04.pdf

The Absolute Sound Issue 183 August 2008. "Bob Carver Interview"

NOTE: 30KHz low pass filters are used to "provide band limiting required by FCC for proof-of-performance broadcast testing". 80Khz are used "to reduce the effect of higher frequency noise present in the measured signal".

I made a typo in my previous post. It should have been 2N3403 not 2N3402. Joe, In your measurement results posted in your pdf.... After adjusting the bias for both channels to your nominal values, did you perform these measurements single channel driven? Or both channels driven at the same...

I can't quite make out the brand of electrolytic capacitors you have in the power supply in your amp. My best guess at the moment is STM. Is this correct? If so, you might consider replacing them. Although some on this forum might like to replace the AGX fuse-holders because they think the...

Everyone is entitled to their opinion. In my opinion is that anything that is no longer factory is a "resto-mod". As for the WOPL pc boards...... the Rev A board was probably the closest to being a copy of a Phase Linear series one PL 14/PL20 pc board with a few exceptions. Over the years the...

I have measured a number of Phase Linear amps and several WOPL Rev E amps. To say that you are "sure the distortion would be much lower than .12% at 1KHz/2KHz at 1 Watt" has no basis or foundation (in my opinion) unless you or someone you know has actually measured it and I have. As I stated...

Joe, You didn't quite answer my question. My post was soon after your initial post. How does one respond to something that is no longer there? Since I almost immediately deleted it and no further responses in this thread occurred until mlucitt responded at 2:56 p.m. Do administrators have the...

Joe, I deleted my post within a few moments of posting it after I realized that the title of your post falls under >Home>Forums>Phoenix DIY Central!> WOPL Tips And Archive. I would like to know how you were able to see a copy of it and then made a copy and then replied to it? Does it have...

Mark, There is some verbiage about setting the bias levels in certain versions of the 6/76 revision of the Phase Linear 400 and 700B series 1 amplifier service manual: NOTE: "Avoid setting the bias voltage level too high in order to obtain very low distortion readings--this may lead to...

I Lee, Is he the one responsible for the quote you use: "Synth percussion is deadly to children, house pets and shitty power supplies" ? Also, I seem to recall some WOPL amps you were selling on ebay many years ago for around $750? Was there anyone you know of that was selling them on ebay...