Manufacturer:  | B & K |
Model:  | 2810 |
Year:  | 1977 |
Schematic:  | RE partial |
| |
Functions:  | DCV, ACV, DCA, ACA, Ohms |
Display:  | LED |
Digits:  | 3.5 |
Logic:  | LSI digital, discrete & SSI analog |
|
Basic battery-powered portable DVM.
To operate without batteries, apply 5-6VDC tip+ to rear jack.
Internals.
Upper board containing LSI chip, display and power supply.
Lower board containing range switching and analog circuitry.
- Unit Log -
Serial Number:  | 71-06046 |
Year of Manufacture:  | 1978 (IC date code of 7814, copyright on case 1977). |
Date of Receipt:  | 29 Apr 2012 |
State upon Receipt:  | Fair physical condition.
Battery leakage pooled at bottom of case.
Some corrosion to battery contacts, input contact and LM307 IC leads.
Some components had been replaced previously. |
Date:  | 30 Apr 2012 |
Procedure:  | Cleaned, powered up with 6V at battery contacts, ohms functional.
Battery and input contacts cleaned. |
Date:  | 02 May 2012 |
Procedure:  | Partial schematic produced.
Soldering of previous repairs cleaned up.
DCV and ohms functional.
AC not yet tested, nor connections around LM307. |