THE GREAT MULLARD MAGIC BLOG
BRIMAR VALVE TYPE & DATE CODES - HOW TO INTERPR...
Well, we did Mullard last week so this time, lets look at the Brimar type and date codes, oft seen on valve envelopes in minuscule inked print, but what do...
BRIMAR VALVE TYPE & DATE CODES - HOW TO INTERPR...
Well, we did Mullard last week so this time, lets look at the Brimar type and date codes, oft seen on valve envelopes in minuscule inked print, but what do...