Vintage HIWATT Convention 2010

Here's the place to discuss Vintage Hiwatt Conventions; past, present & future!

Moderator: Mods

User avatar
Zells
Posts: 160
Joined: Sun Feb 01, 2009 1:52 am
Location: Louisville

Re: Vintage HIWATT Convention 2010

Post by Zells »

This is a very cool early Hiwatt with serial # in the 4XX range (1968?) with no master volume. Notice the odd placement of the Bulgin socket, the smaller vent on top, and the longitudinal stripes on top. Wait, why is the voltage tap selector pointing to '225V'?
Image

Image
Last edited by Zells on Fri Aug 27, 2010 2:01 am, edited 1 time in total.
User avatar
Zells
Posts: 160
Joined: Sun Feb 01, 2009 1:52 am
Location: Louisville

Re: Vintage HIWATT Convention 2010

Post by Zells »

This a 7XX serial # DR103 built in 1969 and used by the band Soft Machine. Is that a slave jack next to the serial tag?
Image

Image
User avatar
Zells
Posts: 160
Joined: Sun Feb 01, 2009 1:52 am
Location: Louisville

Re: Vintage HIWATT Convention 2010

Post by Zells »

1969 Hiwatt CP103. It has the four input volume knobs and lacks a 'middle' tone knob just like the CP103 amps used by The Who. There seems to be no vent on top and no bulgin socket.
Image

Image
Hiwatt Bob
Posts: 148
Joined: Sat Dec 01, 2007 10:48 pm
Location: Minnesota

Re: Vintage HIWATT Convention 2010

Post by Hiwatt Bob »

thanks for the pics Zells!


who's Plexiglass Hiwatt is that?
User avatar
OldSchoolDave
Posts: 2060
Joined: Wed Nov 14, 2007 9:24 pm
Location: HP, NC USA
Contact:

Re: Vintage HIWATT Convention 2010

Post by OldSchoolDave »

Hiwatt Bob wrote: who's Plexiglass Hiwatt is that?
That now resides in its rightful place: Hiwatt Valley!

Zells, several of Dr.Hiwatt's amps run at 225v. He's got a voltage regulator for that very purpose.

Dave
...Hey! I played that song when it was new...

http://www.OldSchoolDave.com
User avatar
Zells
Posts: 160
Joined: Sun Feb 01, 2009 1:52 am
Location: Louisville

Re: Vintage HIWATT Convention 2010

Post by Zells »

OldSchoolDave wrote: Zells, several of Dr.Hiwatt's amps run at 225v. He's got a voltage regulator for that very purpose.

Dave
Do these amps run properly at 225V only, or is this voltage chosen as a matter of preference?
User avatar
Dr.HI-TONE
Site Admin
Posts: 2675
Joined: Wed Nov 14, 2007 8:51 pm
Location: HIWATT Valley

Re: Vintage HIWATT Convention 2010

Post by Dr.HI-TONE »

I have a handful that do not have 105, or 115 taps. only 225, 235, 245.

There is no tonal effect on running an amp on 125 v. 225 unless there is a descrepency between the wall voltage and the tap on the transformer.
ie. an amp set at 115v with voltage at the wall supplying 126v. compared to an autotransformer deliverying a steady 225 to an amp set at 225.
http://www.HI-TONE-Amps.com

HI-TONE, when only the best will do.

DR-F
User avatar
Zells
Posts: 160
Joined: Sun Feb 01, 2009 1:52 am
Location: Louisville

Re: Vintage HIWATT Convention 2010

Post by Zells »

Dr.HIWATT wrote:I have a handful that do not have 105, or 115 taps. only 225, 235, 245.
That makes sense for an exclusively European customer base. I'm guessing that these amps are all pre-1970.
User avatar
Dr.HI-TONE
Site Admin
Posts: 2675
Joined: Wed Nov 14, 2007 8:51 pm
Location: HIWATT Valley

Re: Vintage HIWATT Convention 2010

Post by Dr.HI-TONE »

yes, most of mine are 1970 or older.
http://www.HI-TONE-Amps.com

HI-TONE, when only the best will do.

DR-F
User avatar
mhuss
Site Admin
Posts: 1440
Joined: Thu Nov 15, 2007 5:40 am

Re: Vintage HIWATT Convention 2010

Post by mhuss »

Dr.HIWATT wrote:...compared to an autotransformer deliverying a steady 225 to an amp set at 225.
Hmm, have you ever tested these (actual output voltage under load)? Or do you just "trust them?" :twisted:

--mark
User avatar
Dr.HI-TONE
Site Admin
Posts: 2675
Joined: Wed Nov 14, 2007 8:51 pm
Location: HIWATT Valley

Re: Vintage HIWATT Convention 2010

Post by Dr.HI-TONE »

I tested one of the two a year or so ago. it was accurate.
http://www.HI-TONE-Amps.com

HI-TONE, when only the best will do.

DR-F
buster
Posts: 54
Joined: Wed Nov 21, 2007 4:08 pm

Re: Vintage HIWATT Convention 2010

Post by buster »

Glenn Cornick messing about.
Image


Glenn's invisible bodied guitar.
Image


Some of the gear on show
Image
User avatar
OldSchoolDave
Posts: 2060
Joined: Wed Nov 14, 2007 9:24 pm
Location: HP, NC USA
Contact:

Re: Vintage HIWATT Convention 2010

Post by OldSchoolDave »

I KNOW you took more pictures than that, buster! Let's see 'em!

How was the flight home?

Dave
...Hey! I played that song when it was new...

http://www.OldSchoolDave.com
buster
Posts: 54
Joined: Wed Nov 21, 2007 4:08 pm

Re: Vintage HIWATT Convention 2010

Post by buster »

The flight home was very pleasant thanks Dave.

Mark looking for the rest of the band.
Image

There they are.
Image
buster
Posts: 54
Joined: Wed Nov 21, 2007 4:08 pm

Re: Vintage HIWATT Convention 2010

Post by buster »

Dave heading for his "special" room in the corner of the hall.
Image

Another Hi-Tone display shot.
Image

Dave and Glenn Cornick on a boat after the convention.
Image
Post Reply