"Hook up a phono, CD player or FM tuner into the Scott's phono input. Then you can choose music for getting the feel of the volume expander. Suggest classical music, because it can have sustained softer passages and sustained louder…"
The Fine Things are Always Hand Made
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Dave
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Dave's Discussions
Surplus for sale
Started this discussion. Last reply by Dave Oct 4. 1 Reply 0 Likes
800b Parts
Started this discussion. Last reply by Day Radebaugh Apr 30. 1 Reply 0 Likes
i have a mostly disassembled 800 receiver chassis only, available as parts. Anyone needing a specific item or front wood dash please speak up, price is right.Continue
Masterpiece Glass
Started this discussion. Last reply by Dave Apr 12. 7 Replies 0 Likes
Anyome have dimensions or spare glass for the Masterpiece ? I roughly measure 7 5/8” OD but curvature is a mystery though likely not critical.Continue
AW23 Volume Expander
Started this discussion. Last reply by Norman S Braithwaite Mar 28. 7 Replies 0 Likes
Was there a predetermined cabinet mount location (mapping) for the VE, or was it discretionary ? There are two 90* mount tabs and this one has the single variable pot that likely required a second…Continue
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"Troy:
Probably just a coincidence, tubes do go bad in strange ways and not because of anything you did or didn't do.
The VRE probably had nothing to do with the tube going bad, unless there was a DC voltage on the grid, but the inputs and…"
Troy Taylor replied to Dave's discussion AW 23 Volume Expander"Hello-
I had been listening to the AW23 with the VRE activated to various levels from 0-Full and just was not really impressed. This may have a lot to do with the fact that I primarily listen to radio shows and hockey games, not music with…"
"One more
469659AA-CC85-4D1B-8E97-D0098A96960D.jpeg"
"Old thread but curious if anyone has made reprints of Mr Puett’s work, PDFs ??"
Angelo replied to Dave's discussion AW 23 Volume Expander"Been using my pointer dial Philly a lot of late.The expander sure makes it sound good.Thing is today radio stations use a lot of compression on the audio...RCA Radiotron Designer's handbook has 8 pages on volume expanders.Explains how each type…"
"Hummm. Guess if a volume expander were to be effective, it seems reasonable it would might reduce the low end of the volume range in a noticeable way if you were listening to a quieter program upon activation.
I always thought of the…"
"I wrote this up about 20 years ago. Needs updated, but it will give you a feel for how the expander works.
Kent"
Angelo replied to Dave's discussion AW 23 Volume Expander"No its not a gimmick at all.My pointer dial Philly expander when adjusted right adds a much better sound to the radio.Scott always improved his radios ,so your expander is different than the Philharmonics and may not work as well.Do a search on how…"
"For my Pointer Philly with the control well advanced, the effect was very noticeable. It uses a different tube lineup than your outboard expander for the AW-23.
There is an audible time delay in it's action. An abrupt sound is initially…"
Troy Taylor replied to Dave's discussion AW 23 Volume Expander"So today I installed the re-capped Volume Range Expander into the AW23 receiver, as I had no way of testing it as a stand-alone unit. In addition to re-capping, I also took apart the control potentiometer and very lightly cleaned the wiping…"
"The feet were conventional runner feet.
Norman "
Troy Taylor replied to Dave's discussion AW 23 Volume Expander"Hello-
Finally got a chance to follow up on the comment I made about the screws on the bottom of my VRE falling through when I tried to remove them. I believe that these four screws originally attached some sort of feet in the four…"
"And as with my late 39, remote and phonograph, you needed the phono bay switch or remote to turn set on and off. I luckily sourced a mint remote and harness for $150, it paid to view EBay early one morn ! Though the Vol and station drives were at…"
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Comment Wall (1 comment)
- At 8:11am on March 15, 2018, John De Wit said…
Hi Dave
I sent a request for friend before I can PM you.
John
Dave's Blog
McMurdo Silver Schematic
Posted on January 21, 2017 at 12:48pm 8 Comments 0 Likes
Need help with schematics for the Masterpiece 6. There was an early/late version, mine the earlier with dual choke power supply. There may
Be other variations much like Scott.
Be other variations much like Scott.
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