Re: [Harp-L] Weber 5F2H Harp Amp

["Rick Davis" <bluesharpamps@xxxxxxxxx>]

Hey Steve-

Yep, I'm pretty excited about this 5F2H amp.  The speaker was wrong for my
taste, so I didn't play it much before taking it apart.  I compared it to
the Pro Junior only for volume, which was comparable.  (BTW... those little
Pro Jrs can be made into pretty decent harp amps with a few careful mods.)

I use the Weber 10A125-O in my SF Champ, and it's crunch and tone is
outstanding.  However, there isn't room for an alnico magnet in this amp
with the 5E3 cab.  The fat KT66 tube hanging down from chassis will rub on
the speaker magnet, so I've decided to go with the ceramic 12F125-O
speaker.  I had good tone with ceramics in other harp amps, so I'll give
this a try.

I know the OT may be the weak point, so I'll upgrade to something better
soon.  What do you suggest?

Thanks for all your great comments and suggestions.  I'll post sound clips
of the amp to the Blues Harp Amps blog next week when I get the new speaker
and put it all back together.

-Rick Davis
The Blues Harp Amps Blog
http://www.bluesharpamps.blogspot.com/



On Sat, Oct 25, 2008 at 5:56 PM, steve warner <10reedsbent@xxxxxxxxx> wrote:

> Hey Rick,
> I built several of these with a few minor changes when they first came out.
> What's really cool about this design from Bruce Collins (it's not Ted
> Weber's design) of Mission Amps, who's right next door to you in Aurora, is
> how quiet this beast is.   Bruce is one of those genious amp
> builder/designers.
> There's no comparison to a Pro Jr.  The PJ is not even in the same ball
> park
> tonewise.  To make it really grind I'd use a bright element with balls
> unless you reduce the tone cap some and then you can use big fat dynamic
> elements with it for maximum dynamic range of you choose.  The tone pot is
> a
> usuable 2Meg, which gives a very wide range of tonal capabilities.  I'd
> sure
> like to hear a Kinder Box through one of these little beasts.
>
> The only bad thing about this amp is the weight.  Just under 15 watts and
> 35
> pounds....lugging that amp around to only mic it is tough to comes to grips
> with in a bigger venue.  However, I used the one I made for myself at
> Martini Blues CLub and the sound guy commented how it was the best sounding
> small amp he's ever mic'd.  Piazza, Harman....all those guys he's worked
> with at this club.
>
> Be aware of the cheap Asian OT's tone.  Some are good and some are not.
> Also, if that amp just quits working it's a big possiblity that it's the
> 5F2H's Asian PT.  Very bad quality control.  I've had several that went out
> over the years and won't use them anymore.    It looks like the cathode
> bias
> R has been changed from Ted's kit.  I've had 2 from Ted's kit that blew on
> me, so I went with m own quality 10 watt and never had another problem.
>
> Good call here:  You absolutely have to have Ted's 10 or 12A125-0 in this
> amp.  One of the best harp speakers ever made and the crunch in this amp
> with it is wonderful!
>
>
>
> On Fri, Oct 24, 2008 at 1:17 PM, Rick Davis <bluesharpamps@xxxxxxxxx>
> wrote:
>
> > I just acquired a Weber 52FH harp amp that is already built and includes
> > some interesting upgrades, including a 5E3 cab with 12-inch Mojotone
> > speaker.  Photos and my initial impressions are at the Blues Harp Amps
> > blog:
> >
> > http://bluesharpamps.blogspot.com/2008/10/weber-5f2h-harp-amp.html
> >
> > A comprehensive review with sound clips will follow next week.
> >
> > -Rick Davis
> > The Blues Harp Amps Blog
> > http://bluesharpamps.blogspot.com/
> > _______________________________________________
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> >
>
>
>
> --
> steve
> www.thunderharpmics.com
> fattest tone on earth!
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