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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Aug Thu 23, 2012 3:08 am 
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Location: Indianapolis, IN
Mitch---already have a dozen or so models on my list... Popular chassis !

Alan, thanks---will check it out... Steve either posted or sent schematic awhile back---check earlier in this thread or I could e-mail it to you...

John


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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Dec Mon 28, 2015 4:24 am 
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Location: Indianapolis, IN
Still another revisited project worthy of mention---slight tweak of both the antenna & RF trimmers pushed this snazzy looking set up that performance ladder as well !

Wish that was my "standard operating procedure" back then---always disliked touching something that seemed to be working well... Now realize the error of that line of thought...

John


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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jan Fri 01, 2016 6:33 pm 
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Location: Indianapolis, IN
Hello All,

Have probably seen 30 or so makes/models which used a variation of this chassis through the last few years on Ebay.
Saw this set recently on Ebay which is yet another---and it has an internal AC supply to boot... A little more than what I wanted to spend with shipping cost considering the case being a little rough---but it's a neat looking set, otherwise...

If anyone here gets it, please let us know !

John


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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jan Sat 02, 2016 12:35 am 
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Location: SoCal, 91387
^ That's an interesting looking set; "Leather" case with a brushed Aluminum front, and dials that are 90 degrees apart instead of facing the same way.

The grill looks like an upside down copy of a Toshiba 8TP90;

Image

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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jan Sat 02, 2016 1:19 am 
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Hey Richard---thought of that Toshiba right away ! Bet Ross copied that speaker "grille" idea...

And agree that it's strange that they put a "shafted" volume control with knob instead of typical thumbwheel used on these chassis...

Unusual mix for sure !

John


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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jan Sun 10, 2016 3:14 am 
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Location: Rayleigh, BC, CANADA
Pretty cool looking face for sure but the knob ruined it.
Looks like someone drilled a hole on the front to mount the vol control.

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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jan Sun 10, 2016 4:20 am 
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Agreed that the VC knob looks out of place, but then how can the printed ON and OFF be explained, if not factory?

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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jan Sun 10, 2016 5:22 am 
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fifties wrote:
Agreed that the VC knob looks out of place, but then how can the printed ON and OFF be explained, if not factory?

it obviously is factory, just not much thought was put into that vol cont. placement.
it was Friday night and the engineer that designed the radio wanted to go home, lol, what can I say.

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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jun Wed 19, 2019 10:21 pm 
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Location: La Porte, IN, USA
Mine is branded "Royal" but is otherwise identical. Thanks for the schematic, need to recap--it squeals. :D :D :D

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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jun Thu 20, 2019 12:09 am 
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Hey Oz---think you'll like it when working properly !

John


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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jun Thu 20, 2019 3:33 pm 
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Location: La Porte, IN, USA
xrhonda91 wrote:
Hello Steve,

From what I've seen & heard so far, thought that there may be more variants out there... But this set must be one of the "better" ones with Toshiba transistors & caps---and appears to be well made... Think I mentioned earlier the resemblance to the TR-84 with its thumbwheel vernier dial. And it does have an external antenna jack on the side as well as one for a phono "pick-up"... Also, this one is Japanese made...

Do you how many years they used this "basic" design ? Notice ceramic cap & resistor differences between yours and earlier pic of mine...

Thanks much for the schematic...

Remember when varicap diode circuits first became popular many, many years ago, but never have experimented
with them... But sure caught my interest when I first read of the concept...

John

Very interesting diode mixer circuit. Haven't seen one like that on a BCB set...

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 Post subject: Re: Early Lloyd's TR-88H project - a neat radio !
PostPosted: Jun Thu 20, 2019 3:34 pm 
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Location: La Porte, IN, USA
xrhonda91 wrote:
Hey Oz---think you'll like it when working properly !

John

Thanks John . Hopefully just a recap will have it working like new.

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