Search found 100 matches

by lacquer_monkey
Mon Jul 23, 2012 6:16 pm
Forum: Creative Recording
Topic: Acoustiblock: Have you seen this stuff before??
Replies: 10
Views: 2806

Acoustiblock: Have you seen this stuff before??

I get emailed engineering info from a group called GlobalSpec. This came up in one of the newsletters. If it actually works it seems pretty phenomenal. Here's a link to a video from a trade show or something.

http://www.acoustiblok.com/soundproofin ... ration.php

Seems too good to be true...
by lacquer_monkey
Sat Sep 03, 2011 3:02 pm
Forum: Creative Recording
Topic: Ridiculous!
Replies: 42
Views: 7642

While I have not personally been visited, several people I know personally have been. Did you read the article on the G.A.L. site? As Harpo Marx said "Knowledge is power but ignorance is bliss". You seem to spew venom on a regular basis here. Perhaps you should get in better touch with yourself and ...
by lacquer_monkey
Sat Sep 03, 2011 8:48 am
Forum: Creative Recording
Topic: Ridiculous!
Replies: 42
Views: 7642

Chris, when you don't know what you're talking about it's best not to talk.
by lacquer_monkey
Fri Sep 02, 2011 8:54 pm
Forum: Creative Recording
Topic: Ridiculous!
Replies: 42
Views: 7642

Just fyi, the gubmint is also after handmakers. A whole shitload of government agencies and regulations are involved including, of all things, Homeland Security (or is that Das Fathaland Security). Other agencies are U.S. Fish and Wildlife Service, National Marine Fisheries Service, Customs, Animal ...
by lacquer_monkey
Thu Jul 07, 2011 9:21 pm
Forum: Creative Recording
Topic: Schematic needed for Magnasync Recording Amplifier
Replies: 1
Views: 1220

If you don't have a schematic, just get out a pencil and a pad of paper and make your own. All it takes is patience. It's a good way to advance your knowledge. Start at the input and work toward the output, or vice-versa. Then you can post it...
by lacquer_monkey
Wed Jun 29, 2011 12:43 pm
Forum: Creative Recording
Topic: Higher gain out of a tube hi-fi reverb amp
Replies: 14
Views: 5476

If you mean classes in tube electronics, it's because nobody really uses tubes anymore except in certain niches like big radio transmitters and RADAR installations. Almost all community college classes have classes in math for electronics and AC and DC circuit analysis. Also, N-channel JFETs behave ...
by lacquer_monkey
Tue Jun 28, 2011 11:03 pm
Forum: Creative Recording
Topic: Higher gain out of a tube hi-fi reverb amp
Replies: 14
Views: 5476

This is all interms of AC (signal) rather than static DC stuff...
by lacquer_monkey
Tue Jun 28, 2011 11:01 pm
Forum: Creative Recording
Topic: Higher gain out of a tube hi-fi reverb amp
Replies: 14
Views: 5476

Not exactly... The plate resistance of the tube, the plate resistor, and the grid resistor of the next stage are effectively in paralell. This network is the plate circuit resistance. The cathode circuit consists of the cathode resistor in series with the cathode resistance which is basically the re...
by lacquer_monkey
Mon Jun 27, 2011 10:29 am
Forum: Creative Recording
Topic: Higher gain out of a tube hi-fi reverb amp
Replies: 14
Views: 5476

Lowering the value of the plate resistors will actually slightly reduce the gain of a tube stage. Gain is dependent largely on the ratio of cathode circuit resistance to plate circuit resistance. There are a lot of factors involved (tranconductance, plate resistance at the operating point, resitance...
by lacquer_monkey
Sun Jun 26, 2011 8:47 pm
Forum: Creative Recording
Topic: Important! they're about to mess w/ our wall power !UPDATE!
Replies: 23
Views: 4411

I think you will find that all pro and many consumer reel to reel machines use DC servo motors controlled by a phase locked loop to control the speed (capstan). This is what allows a tape machine to chase time code or have the transport speed varied by the ubiquitous vari-speed control that virtuall...
by lacquer_monkey
Thu Jun 23, 2011 3:19 pm
Forum: Creative Recording
Topic: Higher gain out of a tube hi-fi reverb amp
Replies: 14
Views: 5476

The quickest way to add some gain would be to add bypass caps to the cathode resistors of the recovery and output stages. 25uF/25v should work fine.
by lacquer_monkey
Thu Oct 29, 2009 12:04 pm
Forum: Creative Recording
Topic: Ampeg V4 redplating
Replies: 15
Views: 7171

Take a close look at the way the ampeg sockets are wired. The 6L6 and 7027A pinouts are not exactly the same. The 7027A has both the screen and control grids available on two pins each. 6L6 only one each. Maybe there is an issue there.
by lacquer_monkey
Mon Oct 12, 2009 8:13 pm
Forum: Creative Recording
Topic: Service Manuals and Schematics Available Online!
Replies: 7
Views: 13488

Hey Larry, Here are a few sites that I have found useful. www.schematicheaven.com Mainly guitar amps and effects, some other odds and ends. www.mhuss.com Mainly HiWatt stuff other odds and ends. Lots of good chassis pics of different HiWatt models. Harry Joyce new how to do some clean wiring!! http:...
by lacquer_monkey
Wed Oct 07, 2009 12:36 pm
Forum: Creative Recording
Topic: Bassman Amp Kit Or Other?
Replies: 7
Views: 1909

Watts Tube Audio at www.turretboards.com has various types of kits. I've never gotten any kits from him but I have used his generic turret boards on a lot of my projects and they are good quality. Maybe you can find something that would fit your needs there. He's reliable and has been in business fo...
by lacquer_monkey
Tue Sep 29, 2009 8:25 pm
Forum: Creative Recording
Topic: Why is it so hard to build a cheap pre with fast response?
Replies: 15
Views: 2602

sounds more like a headroom issue than transient response. The risetime doesn't change when you move the mic back but the amplitude at the mic does.