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EBF35, ECH33, How Common and Where to Get!!
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Return to top of page · Post #: 1 · Written at 2:30:25 PM on 3 February 2016.
	Pa Man Location: Golden Grove, SA Member since 10 April 2015 Member #: 1726 Postcount: 149
Hi, I recently got 2 Farmers Radio Service Bus Amplifier/Radios I can seem to get hold of 6SK7 and 6SJ7s But ECH 33 and EBF 35 seem to be a tad harder. Any info on locating would be appreciated. I am also after a knob or 2 as pictured (Pic coming) 28mm across. Many Thanks Josh

Return to top of page · Post #: 2 · Written at 4:38:18 PM on 3 February 2016.
	Clive Durham Location: Grenfell, NSW Member since 8 July 2015 Member #: 1771 Postcount: 212
I just had a look through a box of valves given to me in case I had any of the E series but not a one. Sorry, but I will keep an eye out for you. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ Clive

Return to top of page · Post #: 3 · Written at 4:47:05 PM on 3 February 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6687
If you're a member of the HRSA you can try the Valve Bank.

Return to top of page · Post #: 4 · Written at 5:44:17 PM on 3 February 2016.
	Redxm Location: Tamworth, NSW Member since 6 April 2012 Member #: 1126 Postcount: 466
They do pop up on ebay from time to time. Ben

Return to top of page · Post #: 5 · Written at 9:36:12 PM on 3 February 2016.
	Robbbert Location: Hill Top, NSW Member since 18 September 2015 Member #: 1801 Postcount: 2012
I am also after a knob or 2 as pictured (Pic coming) 28cm across. That's huge! You didn't happen to mean 28mm by any chance? You can use a ECH35 in place of ECH33 if you are able to get one. I think some of the 6*8G may fit too, such as 6A8G, but I don't have my equivalents manual with me at this time.

Return to top of page · Post #: 6 · Written at 9:48:49 PM on 3 February 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6687
That knob, or very similar, appears on eBay from time to time.

Return to top of page · Post #: 7 · Written at 11:24:51 PM on 3 February 2016.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5254
ECH 35 I believe will pin out to 6J8 These are Triode Hexodes. 6A8 & 6J8 will interchange but not perform the same as each other. The other is a duo diode remote cutoff Pentode. Marc

Return to top of page · Post #: 8 · Written at 10:26:16 AM on 4 February 2016.
	Pa Man Location: Golden Grove, SA Member since 10 April 2015 Member #: 1726 Postcount: 149
Thanks all, I keep a close eye on Ebay. I will certainly keep a lookout for some of the variants mentioned. Robbbert, your right ! I know I would put cm instead of mm. (corrected) Regards Josh

Return to top of page · Post #: 9 · Written at 12:20:14 PM on 4 February 2016.
	Gandhn Location: Cameron Park, NSW Member since 5 November 2010 Member #: 770 Postcount: 387
I can help with a NOS ECH33, either unhide your email or email me re cost, postage etc. Harold

Return to top of page · Post #: 10 · Written at 1:54:43 PM on 4 February 2016.
	Pa Man Location: Golden Grove, SA Member since 10 April 2015 Member #: 1726 Postcount: 149
Didnt realise it was hidden. Its now un-hidden but my email is ozwaspgmail.com Interesting that the ECH33 is not common but the ECH35 is everywhere The only thing I can see different is 100ma difference in heater current Josh

Return to top of page · Post #: 11 · Written at 6:49:01 AM on 5 February 2016.
	MonochromeTV Location: Melbourne, VIC Member since 20 September 2011 Member #: 1009 Postcount: 1182
The knob in question is made by Marquis (Commonweath Mouldings) of Arncliffe, NSW. Marquis Plastics Included in the catalogue is the very generic so called Aegis bakelite mantel cabinet that was part of a recent discussion here.

Return to top of page · Post #: 12 · Written at 1:25:05 PM on 6 February 2016.
	Pa Man Location: Golden Grove, SA Member since 10 April 2015 Member #: 1726 Postcount: 149
I did find something close in the UK. I just replace all 4 on one of the units and it will do http://www.ebay.com.au/itm/121870610394?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Josh

Return to top of page · Post #: 13 · Written at 2:33:59 PM on 6 February 2016.
	Ian Robertson Location: Belrose, NSW Member since 31 December 2015 Member #: 1844 Postcount: 2370
6K8 will usually replace ECH33 and 35 as well as 6J8 and even 6A8. I have some NOS Canadian 6K8s I will never use. How many do you need? Else try tubedepot.com.

Return to top of page · Post #: 14 · Written at 3:44:40 PM on 6 February 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6687
PA Man, as of this morning I have that knob for you which, thanks to that very useful catalogue provided my Monochrome, appears to be model MIK3. Check your email.

Return to top of page · Post #: 15 · Written at 6:07:43 PM on 6 February 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6687
The knob in question is made by Marquis (Commonwealth Mouldings) of Arncliffe, NSW. What a great catalogue. Brings back lots of memories. That bell press MBP3 was seemingly everywhere in old buildings when I was a kid, but for some reason I remember it mostly as being the "Press for service" button on the counter of Littles Dy Cleaners. Love the cable codes for each item, too. Used for requesting quotations and placing orders via telex.

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