Old Electrolytics
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Location: Somewhere, USA
Member since 22 October 2013
Member #: 1437
Postcount: 896
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Thanks Ben,
I should have held off ordering... justradios has a $20
minimum, and I've already got the rest.
I have a feeling this won't be my only radio though,
so maybe these ones will do for testing.
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Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1251
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Location: Somewhere, USA
Member since 22 October 2013
Member #: 1437
Postcount: 896
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No harm in using 10 & 20 μF instead though?
It was following this advice:
http://antiqueradio.org/recap.htm
to go higher if the electrolytics are in the power supply.
I already ordered before Redxm replied the first time.
I don't mind buying a few more caps for it though.
Is it better to stick to the precise values?
Both of my replacements at the edge of the %20 vintage tolerance.
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Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1251
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Even 22μF would be fine to replace the 16μF electros.
Some vintage electronic restorers can sometimes be a wee bit pedantic when it comes to replacing capacitors with the original values. As long as the values are fairly close to original it shouldn't really matter.
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Location: Somewhere, USA
Member since 22 October 2013
Member #: 1437
Postcount: 896
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Ok, thanks 
I understand why someone would be pedantic that way as well.
It would also help the next sucker who has to look at it
if the new caps weren't in original casing.
My original electrolytics look like they'd break up easily to
stuff new ones in, but they aren't in any cosmetic
condition to use them for that.
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Location: Wellington, NZ
Member since 24 July 2009
Member #: 517
Postcount: 63
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Just a wee note on the "go higher" advice.... for the cap connected to the rectifier cathode, check the valve data - rectifiers don't like too larger capacitor in this position - when the rectifier is warming up, it's looking into a short circuit until the cap is charged. For example RMorg shows the max safe value in this position for a 5Y3 rectifier is 32uF.
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6A8G.
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Location: Somewhere, USA
Member since 22 October 2013
Member #: 1437
Postcount: 896
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Mine is 5Y3 
I will likely go back and try to find better matches if it works, and all else is ok.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7548
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Radio Revival Parts is still going, website has just been updated by the looks.
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A valve a day keeps the transistor away...
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Location: Somewhere, USA
Member since 22 October 2013
Member #: 1437
Postcount: 896
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I tried them first, and they didn't answer my email sent
before Friday.
I do hope they are still going.
They have valve cans and other stuff.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7548
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Steve sells a lot of stuff that few would dream of trying to get hold of. His replica radio dials are great. Dunno how he finds the resources myself but glad he has.
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A valve a day keeps the transistor away...
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Location: Tamworth, NSW
Member since 6 April 2012
Member #: 1126
Postcount: 470
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Steve is currently overseas for his daughters wedding.
He should be back this week.
I think he is fed up with the attitude of most customers and is trying to offload everything as a job lot
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7548
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Going by his announcement of a tell-all video I reckon he's just about had enough lol.
I just hope he doesn't get himself into any strife with that but I'll buy a copy for curiosity. Steve is right in many respects - too many people out there would happily buy a new car or continue to kill themselves by smoking but have a stroke when they are asked to pay more than two bob for a radio part. This is what stopped me getting into the spare parts game. I just couldn't cop that nonsense.
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A valve a day keeps the transistor away...
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6882
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I just couldn't cop that nonsense.
There's no need to cop nonsense and there's no need to publicly overreact about it either. As the only saying goes, it takes two to tango.
Not everybody is suited to retailing, be that face to face or online.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7548
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Ahhh well, I guess everyone has their own way of dealing with things. Back when I ran my own business as an electrician I'd deal with problem customers (thankfully there weren't many compared to my overall customer base) by refusing to be of service to them. The type I tended to avoid were the time-wasters - people who'd make demands, tell me how they wanted the job done, demand that I use substandard materials or perform illegal work, haggle over the price or demand that I accept their Bankcard despite being told when handed the quote that I didn't accept credit cards. One person who passed me a rubber cheque got the flick quick smart too after being reminded that it is a criminal offence to write a cheque for which there are no funds to cover it.
I use a builder where I work who suffers the same problems from some of his punters. One asked him to build a pergola and deck at the back of their house, gave him some basic specifications and a deposit and then asked him to go ahead with the work. The builder had finished the deck and was ready to paint however the customer refused to return phone calls. (I know the customer and he has a reputation for not replying to unanswered calls and e-mails) So in order to finish the work and get his boys onto other jobs the builder purchased paint and painted the deck and pergola to match the existing colour scheme for the house. Anyway, the customer returns from an unannounced holiday and screams because he wasn't consulted about colours when that should have been explained to the builder before the go-ahead was given and before this clown made himself un-contactable by going on an unannounced holiday.
About 20 years ago a customer asked me to install about 50 LV downlights for him. He had the light fittings and only wanted to pay labour. He also took out a roll of figure-8 speaker wire and $120.00 and told me to start the next day and get it all done ASAP. When I told him I couldn't use the speaker wire as fixed wiring he started bellowing like an old goat and demanded that I do it. After a brief argument, which included a debate over the money he handed me not being enough to cover my time, I just handed the money back and walked away.
The father of a chap I went to school with runs a security door business, although he's probably retired now. I remember a time when he quoted for new sliding security doors. The customer accepted the quote and asked for the work to go ahead. Materials were purchased. The customer was contacted and told the doors would be installed the next day and when he arrived at the site to install the doors the customer told them they wanted the whole lot changed - frame, fixed glass, sliding glass and security doors, the whole shebang. Been a long time since a setup like that, times three, could be had for about $1,000.00. They were lucky to get the security doors for that.
I could go on all night with similar horror stories. I have lots of them to tell but the message is the same. Whilst it takes two to tango, it is not always the retailer who is at fault. I'd never begrudge the right of someone to speak about their experiences as long as they use their own little corner of the world to do it in.
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A valve a day keeps the transistor away...
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Location: Somewhere, USA
Member since 22 October 2013
Member #: 1437
Postcount: 896
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Well don't buy a Music Masters radio from Brisbane,
first cap I go to replace and there is an error in the radio
when compared to the schematic!
the pair of 8MFD caps are supposed to share a common
connection to ground via a 175R resistor, but in mine,
the 16MFD and a 8MFD share the connection to the resistor,
and the 16MFD and an 8MFD have there positives tied
together, which does not happen in the schematic.
The schematic doesn't show cap polarity, but something is wrong. Can't have it both ways.
I can see it going up in smoke already.
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