Dorrough Loudness Monitor Model 40-A Manual and schematics:
Dorrough 40-A PSU and Input Schematic
Dorrough 40-A Bargraph and Peak Driver Schematic
Full Dorrough Loudness Monitor Model 40-A Manual (pdf, ~7 MB)
Thanks JR for sending this...
Dorrough Loudness Monitor Model 40-A Manual
- mediatechnology
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Re: Dorrough Loudness Monitor Model 40-A Manual
Hsssss
I don't remember having that, but I should have.
They used a curved display, and called average "persistence" , in their patent too, to differentiate themselves from my patent that was prior art to them. I believe they were infringing, but by then I had lost control of my patent to a disgruntled investor, and I wasn't going to help him or tell him who to sue.
If your look at their schematic they label the Peak information with a "P", and the average with "A"... I guess they couldn't label them both "P"
JR
I don't remember having that, but I should have.
They used a curved display, and called average "persistence" , in their patent too, to differentiate themselves from my patent that was prior art to them. I believe they were infringing, but by then I had lost control of my patent to a disgruntled investor, and I wasn't going to help him or tell him who to sue.
If your look at their schematic they label the Peak information with a "P", and the average with "A"... I guess they couldn't label them both "P"
JR
Cancel the "cancel culture", do not support mob hatred.
- mediatechnology
- Posts: 5444
- Joined: Sat Aug 11, 2007 2:34 pm
- Location: Oak Cliff, Texas
- Contact:
Re: Dorrough Loudness Monitor Model 40-A Manual
I was pretty sure the patent may have been why you had it.
I'm not real keen on them taking the mono sum of the input either.
I'm not real keen on them taking the mono sum of the input either.