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Vibrator Unit for AWA 608T
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Return to top of page · Post #: 1 · Written at 6:21:40 PM on 26 March 2016.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2216
I managed to spend a little time these last two days rebuilding the wiring loom for the Vibrator and totally rebuilding the Vibrator unit. I have sent some pictures and the difference between the old components and the new are chalk and cheese.

Return to top of page · Post #: 2 · Written at 5:59:53 AM on 30 March 2016.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2216
What I did in the bottom three photos was rewire the old wiring loom. As a assistant tech in my days at Telecom in the early eighties I used to build quite large wiring forms for the relay sets in use at the Tamworth exchange so making this one was a piece of cake and the new cotton tape really makes it look good. I have not tested the vibrator set yet but it looks like that will be happening this week as I have a few nights off, the third and the second photo are of the side of the vibrator unit where I have replaced a 20μF / 200 volt electro and a .100μF cap with their modern day equivalent. All of a sudden there is a lot of space.

Return to top of page · Post #: 3 · Written at 9:34:59 AM on 30 March 2016.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5590
Where in the electrics is that 12V Electrolytic? The vibrator & Kettering ignitions send back a lot of HV spikes which is why the transistorised jobs had a "Spark plate" and why I will not have a mobile phone charger in the cigarette lighter in my Ute when its running. The supressor & points caps used in it on the 12V rails are around 500V for just that reason, & why the Buffer cap was 1000V. They had a very high attrition rate, I use line caps there. Unless you run it just on a battery 12V is low. Most car radios are rated at around 13.8V and modern caps do not quote a surge "value". A lot of the line electrolytics were200V on vibrator sets. Marc

Return to top of page · Post #: 4 · Written at 3:27:57 PM on 30 March 2016.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2216
It runs from a 4 volt battery. And the cap I replaced was clearly marked as 20MFD/200volt. Sorry Marcc my error must have been tired and mind numb I meant 200 volt lol.

Return to top of page · Post #: 5 · Written at 7:32:28 PM on 8 April 2016.
	Simplex Location: Bathurst, NSW Member since 7 August 2008 Member #: 336 Postcount: 405
Looks a lot more tidy and should be much less hash with new caps. My Ferris M94 is of that era and runs excellently.

Return to top of page · Post #: 6 · Written at 8:00:32 AM on 18 April 2016.
	Tallar Carl Location: Latham, ACT Member since 21 February 2015 Member #: 1705 Postcount: 2216
Well people this baby has been tested and works like a new one. The only thing I have to be careful of is that I don't give it any more than 4 volts as this will easily blow the valves. I will be building a regulated 4 volt power supply for it.

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