how to identify a Dave Reeves wired amp V. a Harry Joyce

HIWATT amps from the Hylight Electronics era

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Dr.HI-TONE
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how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Dr.HI-TONE » Wed Nov 12, 2008 5:04 pm

I felt obligated to clear the air regarding Harry Joyce bringing "mil-spec" wiring to HIWATT. Dave Reeves was an exceptional technician and had fully mastered soldering and mil-spec wiring standards. Also a recent question arose regarding identifying a DR wired amp verses an HJ wired amp. I hope this helps!

Here is an example of an amp built by Dave Reeves in Mid 1970 before meeting HJ.

Note the wires soldered to turrets above the board. This facilitated building and servicing.

Image


here is example from 1974. Wired in HJ's shop

Image
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OldSchoolDave
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby OldSchoolDave » Wed Nov 12, 2008 5:15 pm

Great info, thanks!

Learn something new every day... :) .

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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby mikhailwatt » Wed Nov 12, 2008 6:09 pm

Dr.HIWATT wrote:Note the wires soldered to turrets above the board. This facilitated building and servicing.

I think that's actually more in line with true "mil-spec" than making the terminations under the board. :?
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby JC103 » Wed Nov 12, 2008 9:02 pm

Very cool! I think I'll try the Dave Reeves method when I get around to building my clone. :D

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Alnico
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Alnico » Thu Nov 13, 2008 12:17 am

Interesting. My early '71 DR103 s/n 1489 has red dye on the joints and wires terminated under the board, so it must be among the earliest HJ amps?
'67 DR506 s/n 162
'68 DR504 s/n 424
'69 DR504 s/n 675
'70 DR103 s/n 727
'71 DR103 s/n 1489

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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Dr.HI-TONE » Thu Nov 13, 2008 12:26 am

That is interesting! It would surely seem so.
I think HJ must have been brought in in late 1970.
If #1561 was sold and dated January 1971. Then #1489 was almost certainly wired in November-December 1970....???
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Alnico
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Alnico » Thu Nov 13, 2008 12:45 am

The latest date codes on the pots & caps are 7039, and if s/n 1561 is Jan '71 I suppose mine must be late '70. I'll have to change my sig! 8)

It's one of the short run made with a Marshall type tone stack. I've seen two others around s/n 1500 with the same layout, but 1561 seems to have the normal tone circuit. Pics of 1489 are here: Amp Archives

What about s/n 727? Is that conceivably late '69, or definitely '70? That one's also on Amp Archives.
'67 DR506 s/n 162
'68 DR504 s/n 424
'69 DR504 s/n 675
'70 DR103 s/n 727
'71 DR103 s/n 1489

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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Dr.HI-TONE » Thu Nov 13, 2008 12:54 am

I think #727 is quite possibly a late 1969. it is certainly a late '69-early 1970.

Very Nice! 1489 is Lovely! Do you have a nice set of pics like that for #727?
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Dr.HI-TONE » Thu Nov 13, 2008 1:35 am

I just confirmed that Harry Joyce Electronics did begin wiring amps for HIWATT in 1970.

Thanks Mary-C!

:lol:
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby lffish133 » Thu Nov 13, 2008 5:42 am

What was the purpose of putting the ink spot on each connection anyway? I have always wondered that. I like the Dave Reeves method, it is easier to follow. I'll prolly wire my first clone that way.
-lffish133

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Alnico
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Alnico » Thu Nov 13, 2008 9:12 am

727 is also on Amp Archives, along with 14744 which I used to own. The Hiwatt section is a bit thin - only four amps and three of those submitted by me!
'67 DR506 s/n 162
'68 DR504 s/n 424
'69 DR504 s/n 675
'70 DR103 s/n 727
'71 DR103 s/n 1489

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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Mike B. » Wed Jan 14, 2009 5:23 pm

Super cool info and pics!

Mike
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby OldSchoolDave » Wed Jan 14, 2009 7:28 pm

lffish133 wrote:What was the purpose of putting the ink spot on each connection anyway? I have always wondered that.


I think it was just a checklist type of thing. Did this, done with that, checked it, etc.. Or, perhaps it was to reveal any tampering after the chassis left the factory?

Buster??? What's the real story?

Dave
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby Dr.HI-TONE » Wed Jan 14, 2009 7:32 pm

I think Old School Dave has covered the bases pretty well. I wish I could narrow it down, but I can't. I speculate that the answer is "all of the above".
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Re: how to identify a Dave Reeves wired amp V. a Harry Joyce

Postby lp59pete » Fri Jan 16, 2009 2:24 am

This would make a cool presentation this year doc! :)


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