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Return to top of page · Post #: 1 · Written at 8:19:52 AM on 29 November 2022.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2158
Just looking for a recommendation. I usually use pipe cleaners to clean valve sockets with a fair bit of inox or CRC. Does any of you know of any small wire brushes that could do the job. The valve sockets and contacts on the Monarch were so filthy ( tarnished ) that it took at least 4 scrubs of each socket to actually get the valves to light up. Yes I tightened the sockets. It was so bad that I thought the transformer was having issues. I checked continuity to the filements and it really puzzled me. The tone control is very solid but still is barely working . I know it will come good as I have noticed some improvement with time.

Return to top of page · Post #: 2 · Written at 5:49:38 PM on 29 November 2022.
	Robbbert Location: Hill Top, NSW Member since 18 September 2015 Member #: 1801 Postcount: 2017
With time = leaky capacitors.

Return to top of page · Post #: 3 · Written at 6:15:24 PM on 29 November 2022.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2158
Robbert all capacitors have been redone.

Return to top of page · Post #: 4 · Written at 7:36:01 PM on 29 November 2022.
	Ian Robertson Location: Belrose, NSW Member since 31 December 2015 Member #: 1844 Postcount: 2372
A Covid RAT test nasal swap and Silvo silver polish. Perfect!

Return to top of page · Post #: 5 · Written at 9:12:03 PM on 29 November 2022.
	BringBackTheValve Location: Linton, VIC Member since 30 December 2016 Member #: 2028 Postcount: 467
Nice, finally something useful for a RAT nasal swab.

Return to top of page · Post #: 6 · Written at 9:17:09 PM on 29 November 2022.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5257
Some miniature tubes have Silver on them & its not particularly good news if they are seriously grotty here, they may end up spending a few minutes swimming in Hydrochloric or Phosphoric Acid. That Silver can get onto the surface of the socket & track. A lot of the abrasive in toothpaste & car polish is Sodium Bi Carbonate. For some sockets I use the Oxy welding tip files. Marc

Return to top of page · Post #: 7 · Written at 10:23:50 AM on 30 November 2022.
	Ian Robertson Location: Belrose, NSW Member since 31 December 2015 Member #: 1844 Postcount: 2372
Well I used Silvo for many many years when I was a full-time service tech. We used to maintain history cards in the TVs so I knew very well what worked and the Silvo gave as close as was possible to a permanent repair in those days.. After the polish I'd flush any residue out with an alcohol squirt bottle, then wipe (not spray) the contacts with CRC. Re silver migration on valve bases, yes I saw that, mainly on early Mullard B9As and mainly 6M5s.I could have probably used silvo to clean the silver from between the pins, but I never did that, a new bottle always went in rather than risk a call-back.

Return to top of page · Post #: 8 · Written at 1:56:41 PM on 30 November 2022.
	Vintage Pete Location: Albury, NSW Member since 1 May 2016 Member #: 1919 Postcount: 2048
Spray Gun cleaning brush kits ! Supercheap Auto ! Various types and they come in s box for about $20 .. some are nylon and some are wire

Return to top of page · Post #: 9 · Written at 6:22:35 PM on 30 November 2022.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2158
Ahh thanks for that Pete thats ideal. I will visit supercheap this weekend . Bunnings have these as well but this one looks better.

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