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OK, picked up a 7/SB on ebay for $50 + ship. Which was fair because this poor thing has had a hard life. There's rust, and wax melted out of the transformers. Yes, it's a unidirectional zener, marked 1Z100. My guess is that the current equivalent is ZL100 which will produce a voltage of about 83v at best, then 3x cockroft-walton and a 1uf reserve cap *before rather than after the ballast resistor, and the ballast resistor is 4.7M rather than the 2.2 or 3.3 specified in some of the wall-powered schematics. I'm pretty sure I've seen pictures of a 7/SB that had an additional transformer in the bias circuit but not this one, and the board looks identical to a gutshot of an SRD-6/SB i saw recently. I still think it's weird that i have yet to find a /SB official schematic. *shrug* maybe they never published one. Now i wonder what's in the fairly rare SRD-7/SBMK2.

Louis's characteristic NSFW comments in the audio.

First, I want to say many humble thanks for all of your support in the past. Our non-profit, Communities of Belonging, are so happy to be having our 4th annual Walk for Belonging as a part of the national Second Chance Month. April 26, 2025, Green Lake, Seattle... As with many non-profits, we are always struggling with funds to keep things running. And sad to say that our mission is under direct attack. Grants that have helped us in the past have been cut or eliminated. Our message of "We Believe in a World where Everyone Belongs" is not supported under the current administration. We have an opportunity to open another house, and are actively working on how we can support the trans community. We are truly trying to remove all the barriers that we can to help those that need as second chance in life. My team page and walk info on GiveButter - https://givebutter.com/WalkforBelonging2025/michaelmaddock Happy to talk about our mission and any questions you may have about our organization... Cheers and thanks, Mikey

The Hoff forum had a discussion on the same topic. https://forums.stevehoffman.tv/threads/audiophile-rca-switcher.1172100/ Switching?, you'll want a remote, right? RCA Switch Box 4 in 3 Out: 4 Way AV Splitter 3 Output with Remote Control for Audio Video Distribution, RCA Splitter Switcher Composite Video L/R Audio Selector Box for DVD STB Game Consoles https://a.co/d/ddbyc0a $15.99 . Not reassuringly expensive enough? 🫰 Rca source selectors are a bit niche, AV composite selectors have RCA audio as a side effect, and may be more readily available in pro / rack mount versions (avoids cable drag) (Albeit retired) https://www.reddit.com/r/CommercialAV/s/tV8Qfc3ub4 E.g. https://www.extron.com/product/sw6a?subtype=12 Doesn't "Shinybow" scream audiophile cred? https://www.bhphotovideo.com/c/product/872199-REG/shinybow_sb_5430_4_x_2.html/ For my sins, I may have had a radio shack AV selector (black, with silver keys that "clicked") that did just that. It may Even be in some meet photographs from the other site. I have no idea where it is right now. Have fun on your journey!

So my headphone amps outnumber my sources so looking for a RCA switcher. One in and 3-4 out. Was eyeing the Luxman AS-44 Line Switch simply because it's pretty, can be found on eBay, and the matching P-1 would be involved, but can't find any photos of inside and open to other options as, after all, it's just a passive switcher. There's Goldpoint too. And yeah, I know the d-_-b solution would be to buy more DACs. Any thoughts?

The Gospel Of The Blues by Sister Rosetta Tharpe (2003) https://album.link/gj4wgq3qv0qgj Example: 18 Decca tracks from 1938-1948. Recording tech suffers a bit, but it does not overshadow Sister's playing and singing prowess.

soren asked for the board with onboard grlv preamp2025g - CADCAM.ZIP preamp2025g.PDF

Happy birthday from across the pond!

Song from 1982. Movie from 1991. I might have had a slight thing for Jennifer Connelly after this for MY ENTIRE LIFE. Who the foosh is that guy though, he must have been painting houses ever since?

Happy Birthday!

Happy belated, Jeffy!

Happy belated, mi amigo de cerveza

Binged the new Black Mirror season in three days last weekend. Enjoyed it a lot.

^I SO need to get on that (Black Mirror). Totally up my alley, & I am a fan of everyone involved.

As far as I know most of Kevin's valve and value/transistor hybrids aim for a gain of 1000x - thats what the mostly modern T2 has and I think the blue BJT blue Hawaii. The only exception I have experienced is the (standard) EL34 Megatron which has lower gain.

Belated Happy Birthday! Hope it was grand!

The UK is a bit like Shimmer's - they are enemies and allies https://youtube.com/shorts/zOlhHakrKeE?si=BV1jBxb0UmB89End

Thank you Dr.Kevin.

Happy Birthday Jeffy. (Gemini needed more prompting than usual, but not for the reasons you might expect) (Gemini claims not to remember sessions, so the prompts are lost to the world. No big loss) Have a pro hugs worthy day!

Happy Birthday Dood!

Happy Birthday!

Happy Birthday!

This is a deep cut but these guys should have been huge. Potato quality due to obscurity.

Daniel Donato at the Caverns in Pelham Tn on Saturday. https://archive.org/details/DanielDonato?query=date%3A2025-04-12*&tab=collection

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