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

["steve warner" <10reedsbent@xxxxxxxxx>]

Ohhhh yeah!  The 12F125-0 is a good one with very big low end!  Check this
out....I made a 5F2H with 2-10's...1--10F150-0 and 1--10A150-0 and an even
slightly bigger OT.  I made it for the hell of it because I took my friends
Twin 12 Danelectro with Green Back Jensens and jumped it over......WOW!
Massive tone.  The Greens sounded better so I took the amp apart and just
went with one 10A150-0.  The low end is so big it could really use a 5C3
Champ or a Kazoo as a pre amp.  Hmmmmm......About that time I was hit with a
divorce.....LOL.....maybe that's why I never did it.
The mojo is back, so I think I'll give it a go because my friend has that
amp.

The PJ:  I know about those mods to them...I've done a few several years
ago.  If one can find this amp used for cheap and knows how to  lower the
power supply dropping resistor, change out that horid speaker, put in a .1uF
coupling cap and through in one of Ted's Copper Cap Rect Module then it's
pretty good amp for a low 100 bucks with speaker.  If I remember right,
Ted's 10A100 fits.  I like those speakers for breakup and fat tone.

THe KT66.....I remember that one because I bought the very first kit from
Ted and it didn't fit with the 10A125-0.  I was pissed because I was the
freegin' guinea pig and it should have been thought out a little better.  I
gave him the measurements, but he decided to go higher rather than move the
speaker hole over.  He wanted to use the same mold to accomodate several
different amps in his kits.  This amp would sound just as good with a
smaller cab.  One just needs to make his own hole in the front and use a
smaller cab.

OT's?  Mercury Mag., Hoffman, Gerald Weber....off the cuff.  You know you're
getting good stuff.  Better yet, I'd get a vintage one that still works that
coincides with the specs.
You can always chat with Bruce Collins and see what he would do.  You otta
pay a visit to his site.....www.missionamps.com......It should be the same
as before.  He doesn't like cheap parts and will steer you right.  He told
about his dual KT66 mods he's done for alot of harp players and the result
was "very very greasy"....in his words.  After that 5F2H, I don't doubt him
one bit.
cheers



On Sat, Oct 25, 2008 at 5:56 PM, Rick Davis <bluesharpamps@xxxxxxxxx> wrote:

> 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/
>> > _______________________________________________
>> > Harp-L is sponsored by SPAH, http://www.spah.org
>> > Harp-L@xxxxxxxxxx
>> > http://harp-l.org/mailman/listinfo/harp-l
>> >
>>
>>
>>
>> --
>> steve
>> www.thunderharpmics.com
>> fattest tone on earth!
>> _______________________________________________
>> Harp-L is sponsored by SPAH, http://www.spah.org
>> Harp-L@xxxxxxxxxx
>> http://harp-l.org/mailman/listinfo/harp-l
>>
>
>


-- 
steve
www.thunderharpmics.com
fattest tone on earth!