Ultra Low Cost 6P1P Push Pull Schematic,PCB

[hien.t.nguyen]

Hi all.


I has this project ago about one year,I very like by low cost but nice design,I used 6h1P-EV for pre amplifiel and convert phase,two 6P1P for part power amplifier,there are full about it.

 

[hien.t.nguyen]

This is monoblock for 6P1P PP.

 

[hien.t.nguyen]

Output transformer and power trans my hand make with pri 11K second 8 ohm,Fe 22 # EI66,Power trans 6.3V-1A,200V-0.2A for one chanel.

20 Hz -1dB.
20khz - 0.5dB

This is a amplifier 12W/8 ohm/1 chanel

 

[hien.t.nguyen]

Pcb

 

[hien.t.nguyen]

I will share for all,If who that want to make the same me

Sorry my english very bad,please more to lead

Thank

 

[hien.t.nguyen]

In Viet Nam,tube 6P1P is very much.
It is about 0.5 USD/1 pcs,my amplifier about 50 USD.

Hix,ultra low cost!

 

[tim614]

Dep qua! tieng anh qua ban cung duoc lam.

 

[hien.t.nguyen]

Hix,my english is not so good,but I like DIY and I want to be friends for inquiring,to share...

 

[hien.t.nguyen]

Dep qua! tieng anh qua ban cung duoc lam.

Where are you from?

 

[hien.t.nguyen]

I like low cost consequently I am frequent to find some tubes low cost for my design,there are other tubes.

6H7C most new design:

 

[hien.t.nguyen]

>>>

 

[hien.t.nguyen]

I hope to accept the make suggestions of other diyers.

Please everything to attend.

Thank alot.

 

[hien.t.nguyen]

6H7C for design in classB,I used 6H8C is driver contact DC from Anod 6H8C to grid 6H7C, current setup is 4mA for Ik 6H8C.

Preamplifiel used 6J1 have SW selector pentode or triod,inverter phase by 6H8C...

 

[tim614]

Where are you from?

USA. Born in Saigon. Came to the US when i was 11 years old.
I love diy but still lhave allot to learn.

 

[hien.t.nguyen]

USA. Born in Saigon. Came to the US when i was 11 years old.
I love diy but still lhave allot to learn.

Hix,I am newbie for DIY,I am so too.

My name Hien(male),and you?

Wellcome meeting to you,my english very bad,to make mistakes in spelling very much

 

[tim614]

Hix,I am newbie for DIY,I am so too.

My name Hien(male),and you?

Wellcome meeting to you,my english very bad,to make mistakes in spelling very much

Tim-(male)
Luan. viet name.

 

[tungbc]

anh hien thu 2E24 tube xem.dang dinh thu tube nay.

 

[hien.t.nguyen]

I haven"t project for 2E24 but if you need,i will help seach it

 

[Arnulf]

Wellcome meeting to you,my english very bad,to make mistakes in spelling very much

Many of us aren't native English speakers so don't worry about your language, we all make mistakes 🙂 With ongoing participation in English lnaguage forums your language skills are likely to improve !

Back on topic: can you post more details about output transformers (number of turns etc.) used in your amplifier ? These are usually the most expensive item in tube amplifiers so I'm curious how you managed to keep the cost at $50.

 

[hien.t.nguyen]

Thank Arnulf.

My Output transformer used EI66,pri 10K(2.5K-0-2.5K),second 8 ohm.

Number of turns pri : 1600T x 2, wire 0.18mm

Number of turns sec: 90T cheap 3,wire 0.5mm.

Ultra low cost by tube $0.5/1pcs, PCB two layer $8/1pcs( 24x32 cm),chassis $3.5,OPT EI66 $3.5,Power trans $3.5...

My design schematic and PCB,resistor,capacitor...very low cost.