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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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19th May 2019, 2:23 pm | #1 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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ILP HY50 & ILP HY5 amp modules
Today I bought a home made disco unit from the boot fair.
It has turned out to be a poor buy, very badly put together with some soldering which looks like it was done using lighted matches. But It has some interesting amp modules in it. Marked ILP HY50 which is a 25 watt power amp, and a ILP HY5 which is a preamp mixer tone control module. I have found some technical information on the HY5 on a previous thread posted by ukcol I can find some adverts for the power amp module HY50 But I cant find any information on the wiring of the HY50 I am assuming that the connections are fairly straight forward. orange, supply +25v black, supply -25v green, supply ground, input ground, speaker ground blue, speaker white, input Has anyone got the installation manual for the HY50 or can they confirm the pin connections above. Thanks Mike |
19th May 2019, 3:44 pm | #2 |
Heptode
Join Date: Jul 2014
Location: Boston, Lincolnshire, UK.
Posts: 995
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Re: ILP HY50 & ILP HY5 amp modules
Not sure it'll help, but there's an ILP HY50 amp listed on the auction site at the moment, with a description that reads as though the seller built it - could be worth asking if they have a copy of the datasheet ?
Alan |
19th May 2019, 4:09 pm | #3 |
Nonode
Join Date: May 2004
Location: Halifax, West Yorkshire, UK.
Posts: 2,587
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Re: ILP HY50 & ILP HY5 amp modules
Don't whether it will help or not but here is the application note for the later HY60 module and one of ILP's other products.
Alan |
19th May 2019, 4:27 pm | #4 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: ILP HY50 & ILP HY5 amp modules
HY50 connections etc...mag page 473&474:
http://www.introni.it/pdf/Sperimentare%201979_05.pdf Lawrence. |
19th May 2019, 4:48 pm | #5 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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Re: ILP HY50 & ILP HY5 amp modules
Thanks Lawrence, that will be useful, Ill see if I can get that translated.
Mike |
19th May 2019, 6:45 pm | #6 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: ILP HY50 & ILP HY5 amp modules
Bit of a marathon download at the end of my sister's damp string in darkest Herefordshire
The HY50 info is clear enough though, it's a circuit diagram. 1 +25V 2 LS out 3 Input 4 Ground 5 -25V
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19th May 2019, 7:56 pm | #7 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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Re: ILP HY50 & ILP HY5 amp modules
After a bit of fiddling around with text recognition and google translate I have made a PDF in English of the article in the Italian Magazine.
Just in case anyone else wants some information on these amps. Mike |
19th May 2019, 8:26 pm | #8 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: ILP HY50 & ILP HY5 amp modules
Magic
Lawrence. |
19th May 2019, 10:21 pm | #9 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,554
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Re: ILP HY50 & ILP HY5 amp modules
I have got a couple of those.
They have been fitted in a cheap Dixons own brand amplifier that previously had the output pair on a little board and the remainder of the amplifier on another board. It had obviously oscillated and cooked. The power rails in this box are a tad low and there is a little bit of cross over distortion but still it is all right for computer speakers. |
20th May 2019, 7:51 pm | #10 |
Moderator
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,225
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Re: ILP HY50 & ILP HY5 amp modules
ILP electronics ltd was dissolved in Nov 2018, it would be interesting to know what made them fold
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20th May 2019, 7:53 pm | #11 |
Octode
Join Date: Aug 2006
Location: Stoke-on-Trent, Staffordshire, UK.
Posts: 1,082
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Re: ILP HY50 & ILP HY5 amp modules
i have some of these modules at the back of the garage i obtained these from a skip after a local radio station threw them away built them into a power amplifier
I remember these being retailed given a good power supply they can sound quite good Trev |
20th May 2019, 8:13 pm | #12 | |
Octode
Join Date: Oct 2003
Location: Newbury, Berkshire, UK.
Posts: 1,770
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Re: ILP HY50 & ILP HY5 amp modules
Quote:
They went dormant in 2017 and the dissolution was voluntary so it sounds more like petering out than cataclysmic disaster. https://beta.companieshouse.gov.uk/c...filing-history
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20th May 2019, 8:42 pm | #13 |
Nonode
Join Date: Jan 2016
Location: Stafford, Staffs. UK.
Posts: 2,532
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Re: ILP HY50 & ILP HY5 amp modules
One of my many boxes of stuff has a variety of those modules in it. I'm sure I had plans for them once.....
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