Talk to me about Concorde/KF50 Transformers

[lgehrig4]

I've decided my next project will be a Concorde clone and I just want to confirm something about the transformers before I place an order. From this site I found the following info for Heyboer trannys for a Concorde.

#1
Power transformer HTS-8593
Output transformer HTS-5526-1RH
Choke HTS-7750-1


#2
Power transformer HTS-8593
Output transformer HTS-5526
Choke HTS-7550


The Heyboer rep said that "RH" stands for Robert Hinson and that he had a slightly different spec. Are either of these the correct/best options for a Concorde or are there other options out there?

[lgehrig4]

I think I might set the record for most views with no replies. I spoke with the man himself (mr Hinson) so I am all clear on which transformers to get. How do you delete a thread? This one will just be wasting space.

[HeeBGB]

Why not post what you found out? Rather than delete this thread make it useful by putting some useable info in it.

[cbass]

I'd like to know what the specs are on it

[randalp3000]

yes please, and who the heck is Mr Hinson???

and since we're here does anyone have a concord schematic to share?

[Bob S]

He's a member here & a highly respected amp builder.

[M Fowler]

He is rhinson and very knowledgeable, helped me out many times, thanks Robert.

K60
HTS-8593 PT 365
HTS-5526 OT 5k8.
HTS-7750-1 Choke 10hy 200mA


K50
HTS-8593 PT
HTS-7550 OT 4k8
HTS-7750-1 Choke 10hy 200mA

[lgehrig4]

Yes. Spent some time with him on the phone the other night. Very knowledgeable and cool guy! I'm buying a set of these transformers from him.

Now, can anyone tell me where to get one ofthose sweet chassis that I keep seeing on your Concorde clones? I would really like one of those.

[lgehrig4]

yes please, and who the heck is Mr Hinson???

and since we're here does anyone have a concord schematic to share?

I don't think anyone has one. At least I can't seem to find one.

[pablogt]

I built a K50 version in a "standard" Trainwreck chassis. No noise problems and I much prefer that format. Although you need vertical end bells for your transformers (Heyboer provided those to me).

https://tubeamparchive.com/viewtopic.ph ... hlight=k50

Pablo

[cbass]

Does anyone know the current rating of the PT?Looks pretty big. 300mA?

[lgehrig4]

I built a K50 version in a "standard" Trainwreck chassis. No noise problems and I much prefer that format. Although you need vertical end bells for your transformers (Heyboer provided those to me).

https://tubeamparchive.com/viewtopic.ph ... hlight=k50

Pablo

I saw that one. Very nice! Doesn't look stock. Could you tell us about the mods you added?

[M Fowler]

Got my chassis from Allynmey fir first build and my second project I had Ddawg bend me up a chassis to fit the Concorde style hardwood cabinet.

[Roe]

Does anyone know the current rating of the PT?Looks pretty big. 300mA?

I'd guess around 200mA. mine sags quite a bit

[pablogt]

I saw that one. Very nice! Doesn't look stock. Could you tell us about the mods you added?

Apart from the layout itself it's all quite standard. Let's see: Footswitchable fast/slow modes (with some voicing tweaks in fast mode for lead work), power scaling (London power SB1), dual bias adjustment, fuses for B+, heaters and relay power suply (I'm using the 5vac rectifier tube heater supply for that) and three very small rc filters before and after rectification for cleaning up diode switching noise. Heater voltage is elavated by about 70v+. Some voicing tweaks too, to make it cut through the mix better.

Pablo