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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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28th Apr 2017, 8:35 pm | #1 |
Dekatron
Join Date: Nov 2009
Location: Lincolnshire, UK.
Posts: 5,000
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Millbank PAC 150 amplifier.
Another 'bargain' from the latest local surplus equipment sale!
I know very little about these amplifiers. Someone at the sale seemed to know something about it and said that it had recently been fixed and was working and had been in use at outdoor events as a PA amplifier. This was after I'd bought it and I should have asked a few more questions. It looks to have an output transformer and would seem to be for 'line-out' only and I'm guessing that I can't configure this to run into a standard 200 watt speaker cabinet, unless anyone knows different? It is obviously intended to be rack mounted with other units and possibly cooling fans, however it's been fitted with a home made perspex top to make it safe for free standing use. I haven't applied any power to it as yet as I thought I'd get a bit more information on it first. I really only bought it for parts, although it would be a shame to break it up, but when told that it was in working order I thought I could make good use of it as I have speakers powerful enough to handle the output - that's if it'll take ordinary speakers? |
28th Apr 2017, 10:10 pm | #2 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Re: Millbank PAC 150 amplifier.
Note the 24v battery input connector so it could be used in the event of mains supply failure. 24V isn't enough to create that amount of power into normal speaker loads without an output transformer. And output transformers are routine in amps with 100v line outputs.
Also, it may be designed more for speech than music, so the bass end may be a bit lacking. David
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28th Apr 2017, 11:09 pm | #3 |
Heptode
Join Date: Sep 2005
Location: LEEDS.......North of the River Aire.
Posts: 872
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Re: Millbank PAC 150 amplifier.
Can see LoZ marked on terminal block, pic 3
I assume this is for normal speakers. Also see: https://www.vintage-radio.net/forum/...d.php?p=756699 |
29th Apr 2017, 12:22 am | #4 |
Dekatron
Join Date: Nov 2009
Location: Lincolnshire, UK.
Posts: 5,000
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Re: Millbank PAC 150 amplifier.
Thanks for the replies chaps, I shall investigate further.
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29th Apr 2017, 5:57 am | #5 |
Dekatron
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
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Re: Millbank PAC 150 amplifier.
It looks a well made amp with the output panel similar to TOA PA amplifiers, see attached. Also a thread here - https://www.vintage-radio.net/forum/...d.php?p=756699 You have to make sure the link is in the right place.This amp sounds very nice, if yours is like it, you should have a good un.
BTW, what local surplus sale? Andy.
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Curiosity hasn't killed this cat...so far. Last edited by Diabolical Artificer; 29th Apr 2017 at 6:02 am. |
29th Apr 2017, 7:14 am | #6 |
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Join Date: Mar 2012
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Re: Millbank PAC 150 amplifier.
If using the low-z output, you need check because these are sometimes just low power outputs for a local monitor speaker. It may be both scaled and rated to only deliver a fraction of the output power.
David
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29th Apr 2017, 10:14 am | #7 |
Dekatron
Join Date: Sep 2015
Location: Southwold, Suffolk, UK.
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Re: Millbank PAC 150 amplifier.
These are Mono PA (Public Address) amplifiers. What were you planning to use it for?
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