21-11-2012, 10:38 AM
Hi Al, yes a Q multiplier...I forgot that one.
Hi Paul, you might or might not be aware of Henry Rogers american boat anchors website, here is the link anyway for those that might be new to this field:
http://www.radioblvd.com/ar88.htm
The standard meter mod. is on there.
The site is a very good read, he also keeps and maintains a serial No: log for these classic receivers as well as for the HRO, Hammarlund, Hallicrafters, BC348 etc. He welcomes any submissions, some of my serial numbers are on his list somewhere, there is an email contact somewhere on that site.
From memory I think the AR88D S/no: is stamped on the rear chassis apron? He generally does not respond to chit chat types of emails ie: "my radio doesn't work wot's wrong with it" but anything in a historical context he is usually interested in and will reply so if you can find the serial number it would be worth submitting it to him.
My own AR88D is stacked in a pile at the moment so can't do any voltage comparisons etc that might help, others might be able to help though.
As regards the perspex window I suppose it could be replicated, graphics wise it's fairly simple.
The white is the awkward one, maybe some of the other forum members have ideas to deal with that.
As regards the noise limiter then as Al has said many of these receivers were heavily modified so it would be worth checking around that section for any obviouse signs, failing that it will be the standard fault finding proceedure, it sounds as though the biasing on the limiter diode is up the creek maybe?
Lawrence.
Hi Paul, you might or might not be aware of Henry Rogers american boat anchors website, here is the link anyway for those that might be new to this field:
http://www.radioblvd.com/ar88.htm
The standard meter mod. is on there.
The site is a very good read, he also keeps and maintains a serial No: log for these classic receivers as well as for the HRO, Hammarlund, Hallicrafters, BC348 etc. He welcomes any submissions, some of my serial numbers are on his list somewhere, there is an email contact somewhere on that site.
From memory I think the AR88D S/no: is stamped on the rear chassis apron? He generally does not respond to chit chat types of emails ie: "my radio doesn't work wot's wrong with it" but anything in a historical context he is usually interested in and will reply so if you can find the serial number it would be worth submitting it to him.
My own AR88D is stacked in a pile at the moment so can't do any voltage comparisons etc that might help, others might be able to help though.
As regards the perspex window I suppose it could be replicated, graphics wise it's fairly simple.
The white is the awkward one, maybe some of the other forum members have ideas to deal with that.
As regards the noise limiter then as Al has said many of these receivers were heavily modified so it would be worth checking around that section for any obviouse signs, failing that it will be the standard fault finding proceedure, it sounds as though the biasing on the limiter diode is up the creek maybe?
Lawrence.
