Re: Simpson 260 repair

On 4/4/2025 11:36 AM, bitrex wrote:

Picked up a Simpson 260 6M at the local thrift store, I was initially disappointed to find it had a sticking meter but some gentle rocking freed it.
 Unfortunately the movement resistance is a little high, about 1880 ohms vs the 1800 in the service manual. This causes the movement to not fully deflect when 50 uA (sourced from an HP 6177B, and monitored by a recently lab-calibrated 3478A) is run through it, it goes to more like 48.5 out of 50.
 Is it correct that recharging the meter movement is the only thing that can help in this situation? It seems a relative error of 3% is actually still barely within factory spec so probably best to just let it go and enjoy a meter that's nice enough for the 10 bucks I paid for it, lol

Oops, I meant to post this in sci.electronics.repair but here we are.