FS: Classic (and superior) Radio Shack Analogue Sound Level Meter 33-2050

[Steve Eddy]

The classic, Korean-made Radio Shack 33-2050. An oldie but a goodie. Superior to newer models.

Radio Shack Sound Level Meter Characteristics

"Neither the new meter nor the digital meter seems to demonstrate fidelity similar to the older models."

I bought this years ago and only used it once or twice. Time to give it a new home.

$25.00 (PayPal only)

Includes USPS Priority Mail shipping in the US and a new Duracell 9V battery.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

se

 

[dtm1962]

Hi Steve:

I will take the RS meter.

Let me know your PayPal account.

I will send you an email as well.

I have a US mailing address in Port Huron Michigan 48060

Thanks,

Dan

 

[Steve Eddy]

Thanks, Dan!

I'll get it boxed up and ready to go out in tomorrow's mail.

PayPal account is sales@q-audio.com

se

 

[geraldfryjr]

Does any one have the shcematic to this meter that they can post?
I used to be able to find it on the net but aparently the file has been pulled.
The chip went out in mine and I am thinking about retrofiting A bifet opamp in it.
I know I could order a new chip but that would cost money, and, if I could I would just buy a new meter. jer

 

[geraldfryjr]

I have had two of these and the schematic is in the manual that comes with them only I can't seem to find either copy,

Any help would be much apreciated! jer

 

[geraldfryjr]

anyone?

 

[gaetan8888]

Hello

Here is the 33-2050 and 33-2055 models schematics.

Bye

Gaetan

 

[dotneck335]

Hello

Here is the 33-2050 and 33-2055 models schematics.

Bye

Gaetan

THANK YOU Gaetan!!! This is tough stuff to find!!! It appears that, as on the old analog meters, that the newer digital ones just need the coupling and power supply caps upped to reasonable values. It is hard to believe that 1 uF coupling caps would be specified in anything audio that is to be used for audio in the area below 100 Hz.