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Started by flester, March 22, 2018, 05:40:24 PM
Quote from: solderer25 on March 31, 2018, 11:45:23 AMI can see it has a 'magic eye' tuning indicator tube. These look the dogs nuts when working and glow flourescent green usually. Worth bringing back to life just for that I think!
Quote from: flester on April 03, 2018, 07:24:19 AMWhats a good way to clean something like this? Its got 69+ years of dust, cobwebs and kitchen grease.Sent from my SM-G935F using Tapatalk
Quote from: galaxiex on April 03, 2018, 08:32:15 PMQuote from: flester on April 03, 2018, 07:24:19 AMWhats a good way to clean something like this? Its got 69+ years of dust, cobwebs and kitchen grease.Sent from my SM-G935F using TapatalkI use compressed air first to clean old guitar amp chassis.Just to blow the loose dust, cobwebs, and general grunge out.Then scrub with Naptha (lighter fluid) and/or alcohol and an old tooth brush,blowing off the loosened muck with air.Naptha and alcohol are fairly benign to most things, and certainly ok on metal chassis,but on something this old, I'd be cautious about using any solvents near anything that looks like paper or waxed and maybe even plastics.Test a small area first.
Quote from: edvard on June 14, 2018, 01:48:30 AMIf the capacitors have paper sleeves, a good trick to upgrading but keeping the "vintage" look is to put new caps in the old paper sleeves. Done correctly, nobody will tell the difference.
Quote from: flester on September 15, 2020, 06:59:50 AMIt's been a while but this is going to be a powered speaker and maybe guitar amp. It has some of the lovely old radio sound due to the speaker and the enclosure even if theres no valves in the signal path. On the right is a whopper of a volume/tone/power switch. Pot seems noisy but I will definitely use the on/off element. The front panel lights up with good old fashioned incandescent bulbs. I plan to leave the chassis intact and in situ. Should I discharge the old capacitors for safety? Sent from my SM-A505FN using Tapatalk
Quote from: flester on September 17, 2020, 06:00:50 AMBTW the volume pot is 1M ohm which is not ideal as its 'off' from 1 to 9 and everything happens from 9.1 to 10. Can I improve that by adding resistors in parallel?Sent from my SM-A505FN using Tapatalk