UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - HMV Mono Record Player Problem (Model 2004?)

Station X · 8th Apr 2010, 3:41 pm

A 0.01 Farad capacitor would be physically huge, so they're undoubtedly 0.01uF (micro farads). 10nF (nano farad) capacitors are just the same give or take the units and position of the decimal point. The replacement capacitors should be rated at the same or higher voltage as the originals.

It isn't worth your building a reformer to reform the capacitors in the can. Either connect a 60W mains filament bulb in series with the mains lead when you first apply power or replace the capacitors in the can with new individual ones under the chassis. The series lamp will limit the current which would otherwise be drawn by a short circuit can. If all is OK after a minute or so disconnect from the mains and feel the capacitor's case to see if it's getting hot. If so replace it.

If it's an HMV model 2004 the capacitors in the can will be 40uF. Replace with 47uF if necessary. 40uF units aren't easy to obtain.

8th Apr 2010, 3:41 pm	#12
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,288	Re: HMV Mono Record Player Problem A 0.01 Farad capacitor would be physically huge, so they're undoubtedly 0.01uF (micro farads). 10nF (nano farad) capacitors are just the same give or take the units and position of the decimal point. The replacement capacitors should be rated at the same or higher voltage as the originals. It isn't worth your building a reformer to reform the capacitors in the can. Either connect a 60W mains filament bulb in series with the mains lead when you first apply power or replace the capacitors in the can with new individual ones under the chassis. The series lamp will limit the current which would otherwise be drawn by a short circuit can. If all is OK after a minute or so disconnect from the mains and feel the capacitor's case to see if it's getting hot. If so replace it. If it's an HMV model 2004 the capacitors in the can will be 40uF. Replace with 47uF if necessary. 40uF units aren't easy to obtain. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.