Search found 525 matches

by Kagliostro
Sun Jan 14, 2024 5:51 pm
Forum: Technical Discussion
Topic: Schematic for oddball Sano amp
Replies: 15
Views: 2258

Re: Schematic for oddball Sano amp

Thanks again Steve

Franco
by Kagliostro
Sat Jan 13, 2024 11:55 am
Forum: Technical Discussion
Topic: Schematic for oddball Sano amp
Replies: 15
Views: 2258

Re: Schematic for oddball Sano amp

.... The schematic is not imho showing the jfet correctly .... I agree with you, the simbol that was used is the simbol of an SCR Diode As I'm not confident with Jfet and other Solid State components, if someone can put on the actual schematic where are placed the Source - Drain - Gate connections ...
by Kagliostro
Thu Jan 11, 2024 2:04 am
Forum: Technical Discussion
Topic: Schematic for oddball Sano amp
Replies: 15
Views: 2258

Re: Schematic for oddball Sano amp

Sano.jpg
Franco

p.s.:I aplogize, when I posted I linked a wrong version of the file, now it is correct
by Kagliostro
Wed Oct 25, 2023 7:15 am
Forum: Technical Discussion
Topic: How to Determine if a Tube is Microphonic?
Replies: 9
Views: 3950

Re: How to Determine if a Tube is Microphonic?

Ciao GAStan

May be you are interested on this
Microphonics in valves.pdf
1958 - Bruel & Kjaer - Microphonics On Vacuum Tubes (Petersen).pdf
Franco
by Kagliostro
Tue Oct 24, 2023 3:53 am
Forum: Technical Discussion
Topic: Visio stencil/shapes library
Replies: 11
Views: 15911

Re: Visio stencil/shapes library

I decided to revise my 2W and 3W (Metal Film) Power Resistor Stencil using bot Color Bands and Numeric Values on each resistor

Image

If you are interested here attached you can find the .vss Stencil file

Power Resistors 2-3W w Values.vss

Franco
by Kagliostro
Fri Jun 02, 2023 9:38 pm
Forum: Technical Discussion
Topic: Switchable Output Transformer?
Replies: 3
Views: 270

Re: Switchable Output Transformer?

To give a look to your old TU

Franco
by Kagliostro
Sat May 20, 2023 12:59 am
Forum: Technical Discussion
Topic: what transformers (made in Italy)?
Replies: 3
Views: 388

Re: what transformers (made in Italy)?

I just verified with some friends, they know Piemme Elektra and are very satisfied also for this brand

Franco
by Kagliostro
Fri May 19, 2023 10:25 pm
Forum: Technical Discussion
Topic: what transformers (made in Italy)?
Replies: 3
Views: 388

Re: what transformers (made in Italy)?

I haven't direct experience with InMadOut but I've read lot of times good feedbak about those transformers

Franco
by Kagliostro
Mon Apr 03, 2023 6:48 am
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

There Is no problem :D

K
by Kagliostro
Sun Apr 02, 2023 7:51 pm
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

.... I think a traditional fixed resistor. Why switched? I mean that the pots on the schematic, that are swapped using a switch, are acting, one at a time, as grid leak resistor ... You mentioned 6Av6 before power tube. Is there a reason for choosing this over a 12AX7 or AT7 or AY7. I told 6AV6 bec...
by Kagliostro
Sat Apr 01, 2023 10:17 pm
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

Switched pots used as grid leak resistor ?

Franco
by Kagliostro
Sat Apr 01, 2023 4:18 pm
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

I'm quikly reading that thread and I've find something that is not favourable to me https://ampgarage.com/forum/viewtopic.php?p=120509#p120509 That preamp has not enough swing for a tube as 5881 and so I think the same for the GU50 or 1625 tubes EL84 is in the order of 11.3mA/V, 1625 is around 6mA/V...
by Kagliostro
Sat Apr 01, 2023 3:54 pm
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

Ciao Martin

Seems that something is at page 5

a Mini HRM Schem & Layout from 10thnx (I think he is Tubenit)

Image

Image

Thanks

Franco
by Kagliostro
Sat Apr 01, 2023 3:30 pm
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

Ciao Guy77 https://ampgarage.com/forum/viewtopic.php?t=10913&postdays=0&postorder=asc&highlight=hrm&start=0 .... Page 2 has a layout you can use Unfortunately on that page I can see only a Schematic https://ampgarage.com/forum/download/file.php?id=11726&mode=view and a link to a pdf containing one ...
by Kagliostro
Fri Mar 31, 2023 10:07 pm
Forum: Technical Discussion
Topic: Dumble Preamp (for SE amp)
Replies: 22
Views: 1548

Re: Dumble Preamp (for SE amp)

Thanks Guy77

Is there a version of Layout I can use

I'm interested also if it is only about the preamp or a whole amp Layout from which I can borrow the preamp layout

---

Ooops ... Sorry Reeltarded

Pollo Arrosto.png

K