Hello Thomas,

Welcome to the Charlize user group. Let the Charlize to run in
50~100hrs and the sound will improve a lot. However, you need to have
high efficiency and easy loading speakers as the amp only have good
8w. No need to build a regulated PSU. Driving the Charlize by Switch
Mode PSU (SMPS) or SLA battery will be better. Remove the cap to add
across the PSU rail. This will impede the dynamic & rythmic characters
of the Charlize. Try it!.

SMPS & SLA battery are cheap in HK. So please try them and compare.
For your information, a 12V 5A SMPS cost less than HK$200. A 9AH 12V
SLA battery is approx. HK$100. A cheap SLA charger with 6V/12V
selection sell at HK$65 at Ap Liu Street. Try them out and find out
which you lkie most.

Andy

--- In doctorjohn_CheapTubeAudio@yahoogroups.com, "NPM" <npm98@p...>
wrote:
>
> hi Andy,
>
> Ok I got the Charlize today. Hooked up to a 9V simple adapter, quite
a big
> one non switching type, adde3d a 1500 uf cap to the PS, soldered a
pair of
> input RCA females, and (very barely able to) clip my speaker cable
to the
> circuit directly, and there is sound!
> I used my mono FM tuner ( REL) to drive it to listen just 1 ch. The
sound is
> mellow on my Rega small floor standing speaker. But it does have a
big sound
> and good resolution. Then I used it to drive my 755A. Initially the
sound is
> a bit hard, after a few hours it mellowed down.
> For the size, it is very good and convenient amp!
> To compare to my tube amps, I think it could easily perform better
then most
> tubes amp that is not at optimum condition. But it still would not
have the
> air and weight for a good tube amps that is at optimum condition,
and most
> tube amps are not operating under optimum condition!! So this little
amp
> that could take simple power supply from 9-12V could sound better
the those
> tube amps indeed!
> I will build a proper power supply, tweak it a bit then listen a bit
longer.
> What I could see is that the output printed circuit traces from the
coils
> are a bit too narrow and definitely it would not be good for the sound.
> Unless it is designed that way to produce certain characteristic of the
> sound.
>
>
> Best rgds
>
> William Lee
>
> ----- Original Message -----
> From: "andy2667" <andy2667@s...>
> To: <doctorjohn_CheapTubeAudio@yahoogroups.com>
> Sent: Tuesday, November 29, 2005 11:01 PM
> Subject: [doctorjohn_CheapTubeAudio] Re: Class T amp
>
>
> > Hi Top,
> >
> > Not heard the SI amp. The Charlize is said to be much better than the
> > SI. FYI, the midrange of the Charlize is on the thick side compared
> > with my DRD 300b. Yet, the clarity & resolution is excellent.
> >
> > Regards
> >
> > Andy
> >
> > --- In doctorjohn_CheapTubeAudio@yahoogroups.com, karma barfungpa
> > <karmathk@y...> wrote:
> >>
> >> Howdy Andy,
> >> I also tried the T-amp, albit the Sonic Impact varity,
> >> modded it,and now it is in another avtar. I was also
> >> very impressed with the sound the first time I heard
> >> it,it was rather bright and very engaging. However
> >> after a while the desire to listen to it diminished.
> >>
> >> A lot of time the Baritone voice needs to come from
> >> the stomach, perhaps also the toukas (As some one once
> >> said???), I just felt that the beautiful Baritone
> >> coming from the T-amp was from the chest. The T-amp is
> >> a Bocelli to the Tube amps Pavarotti.
> >>
> >> It is still a best buy for a lot of ears.
> >> regards
> >>
> >> Tops
> >>
> >> --- andy2667 <andy2667@s...> wrote:
> >>
> >> > Hello DocJohn & Others,
> >> >
> >> > It seems that this forum is not as active as years
> >> > ago. My discussion
> >> > on Class-T may a little bit ouside Topic.Just want
> >> > to share my
> >> > experience in Class-T amp.
> >> >
> >> > I learnt a lot on tube audio from this forum,
> >> > started in tube gears
> >> > and settled down on tube amp searching sice
> >> > completion of my DRD 300B
> >> > from the Welborne Kit. Intended to explore more on
> >> > other SET tube amps.
> >> >
> >> > My recent experience in class T am changed my mind.
> >> > I acquired a very
> >> > little class-T amp (a complete module need add on
> >> > PSU and connectors)
> >> > from diyparadise. Tried it and has been amazed.
> >> > After a period of
> >> > listening, my beloved DRD 300B may need to retire.
> >> > Not saying that the
> >> > Class-T amp sound better than the DRD300B. They
> >> > sound different but
> >> > both sound good to the same level. How amazing for
> >> > this little class-T
> >> > amp. It cost less than the pair of EH300B tubes. It
> >> > is still in a
> >> > small glimsy plastic box shipped with the amp
> >> > module.
> >> >
> >> > What I need to power up the amp was to solder the
> >> > necessary
> >> > connector....RCA, Binding posts etc and connect the
> >> > amp to a SMPS
> >> > (switched mode Power Supply cost HK$1XX).
> >> >
> >> > The class-T amp is so efficient that it can be
> >> > powered by 12V SLA
> >> > battery. I think my journey to Tube AMP will stop
> >> > here temporary. The
> >> > class-T is so compact, small, efficient , flexible.
> >> > It sound excellent
> >> > too!
> >> >
> >> > No exotic Power cable, no PSU treatment!
> >> >
> >> > In my opinion, a new era in Hi-Fi audio will comes.
> >> > Hi-Fi Pc, good
> >> > class D, battery or SMPS powered gears.......
> >> >
> >> > By the way, battery powered NOS DAC sound very
> >> > smooth and good. Not
> >> > much experience in DAC. Has only used some cheapy
> >> > CDP and old Philips
> >> > CD880.
> >> >
> >> > I amp now using Class -T main amp, PC + hard disC +
> >> > battery powered
> >> > USB sound Card as main source, battery powered NOS
> >> > DAC. The PC is so
> >> > convenient that I will cease investigating LP as
> >> > source.
> >> >
> >> > Hope my experience can provide some insights.
> >> >
> >> > Andy
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >>
> >>
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