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Lee, I have a lot more of this kind of stuff as it relates to amplifiers. Months and months of research............. Ed

W.O.A. Rev E Fully Comp. board completed (for use w/o back-plane boards) Here is a photo of the Rev E board I just completed a few minutes ago. It is set up to be used in a fully comp amp without the W.O.A. back plane boards. NOTE: I still need to do some cleaning to remove the flux. Joe...

Joe, I have an old e-mail with some assembly information. I am not sure if you made any changes to it. Did you just send me a recent e-mail? I checked my callab e-mail address and Phoenix private messages and didn't see anything. By the way, could you send me everything you have on the Rev D...

Joe, Thanks for the info. I will check into it. Ed

Methods to Evaluate the Ballistics of Audio (VU) Meters http://www.aes.org/e-lib/browse.cfm?elib=17844 This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Reviews: Peak Programme, LED, VU Meters (Studio Sound Sept 1976) Reviews: Peak Programme, LED, VU Meters by Hugh Ford, Studio Sound Sept 1976 pages 54-60, 62-64 and 66-68. https://www.americanradiohistory.com/Archive-Studio-Sound/70s/Studio-Sound-1976-09.pdf

Some Questions and Answers on the Standard Volume Indicator ("VU Meter") http://www.aes.org/aeshc/pdf/mcknight_qa-on-the-svi-6.pdf

Meter Ballistics I have started a new thread on Meter Ballistics. http://forums.phxaudiotape.com/showthread.php/8460-Meter-Ballistics

Here is the first in a series of articles I have concerning meter ballistics.

Choosing Solder Here is a link to a website that discusses "Choosing Solder". https://www.neurochrome.com/choosing-solder/

Solder & FluX Removal Perhaps I should have mentioned which solder I am using when asking for some input as to what chemicals people are using for flux removal. I use a variety of diameters of MG Chemicals Sn63/Pb37 RA Solder Wire, depending upon the size and nature of the connection. MG...

I have started a new thread. http://forums.phxaudiotape.com/showthread.php/8459-oldphaser-(Ed)-Builds-Some-Amps-(Phase-Linear-amp-White-Oak-Audio)

Finally after all these years, I am just about to finish up a batch of Phase Linear 700 series amplifiers with W.O. Audio and Phase Linear pc boards. I intend on having (1) of every revision of pc board installed in each one of these amps including Phase Linear PL0171, PL14A, PL20, PL36 and...

Phase Linear 9500 Compact Disc Player Review (Electronics Australia April 1984) Phase Linear 9500 Compact Disc Player (see pages 38, 39 and 41) https://www.americanradiohistory.com/AUSTRALIA/Archive-Electronics-Australia/1984/EA-1984-04.pdf

Phase Linear Pro 700 Power Amplifier Review (Modern Recording March 1983) Phase Linear Pro 700 Power Amplifier Review (see pages 48 and 49) https://www.americanradiohistory.com/Archive-Modern-Recording/80s/Modern-Recording-1983-03.pdf

Studiomaster 800B/800C Power Amplifier Review (Modern Recording February 1982) Studiomaster 800B/800C Power Amplifier Review (see pages 76-77) https://www.americanradiohistory.com/Archive-Modern-Recording/80s/Modern-Recording-1981-02.pdf

Phase Linear A60 Power Amplifier Review (Modern Recording November 1981) Phase Linear A60 Power Amplifier review (see pages 64, 65) https://www.americanradiohistory.com/Archive-Modern-Recording/80s/Modern-Recording-1981-11.pdf

The Phase Linear Dual 500 service manual states the following on page 29: 6-5.1 Unit will not drop into Lo-Z: a.) Replace SCR504, D503. b.) Check wiring to coil of relay K2. 6-5.2 Unit will not stay in Hi-Z mode with an 8 ohm load: a.) Verify that R505 is 1.5K b.) Check Q504 NOTE: SCR504 is a...

Do you have a copy of the D-500 service manual? See section 6-10 Ed

Bob Carver and High-End Heresy (Stereo Review September 1985) https://www.americanradiohistory.com/Archive-HiFI-Stereo/80s/HiFi-Stereo-Review-1985-09.pdf see page 200