6SK7/6K3

[DanM]

Buna ziua,

As dori sa cumpar 2 buc. 6SK7 sau 6K3(rusesti)

[Усилитель]

The 6SK7 is a variable μ pentode for RF and IF amplifiers in superhet receivers. Essentially the S stands for single ended so the 6K7 had a top cap and this later development did not.
The gain of the device being controlled by a negative voltage derived from rectifying the final IF signal. In this way strong signals do not overload the receive chain because the various controlled stages have their gain reduced.
The 12SK7 had identical characteristics apart from the heater. The 12.6 Volt heater being used directly across a vehicle battery.

Merge si EF93 ....

[DanM]

Acum 9 minute, Усилитель a spus:

The 6SK7 is a variable μ pentode for RF and IF amplifiers in superhet receivers. Essentially the S stands for single ended so the 6K7 had a top cap and this later development did not.
The gain of the device being controlled by a negative voltage derived from rectifying the final IF signal. In this way strong signals do not overload the receive chain because the various controlled stages have their gain reduced.
The 12SK7 had identical characteristics apart from the heater. The 12.6 Volt heater being used directly across a vehicle battery.

Merge si EF93 ....

:( nu-i de tabla... am EF183 dar... nu-i la fel ca "dizain".Eventual cu 2 manevre suplimentare: resoclare si incapsulare...

...stiu, sunt carcotas...

Editat Iulie 6, 2021 de DanM

[Усилитель]

Nu sunteti carcotas ,chiar apreciez atractia pt stilul Retro , ma gandeam ca in ultima instanta ......daca nu gasiti .Pe net am vazut ,nici nu sunt scumpe , problema este transportul.........mai scump ca tubul....

Nu trebuie resoclat , se poate face un adaptor ,un culot octal recuperat ,un soclu fara margine pt celalalt.....

Spor , deocamdata arata bine , butoanele stil "Marshall "de unde ?

[DanM]

Din "ciaina"... AliExpress... Și am găsit și de 40mm, dar mai durează până vine.

Vreau să semene cât mai mult cu originalul... ParaSet radio transceiver.

[Усилитель]

Nu ciaina , sunt depozite din europa cu stocuri la pret rezonabil....

https://www.reichelt.com/de/en/electron-tube-pentode-octal-8-pin-6-3-v-tube-6sk7-p258579.html

[Lcon]

Cred ca am eu 6K3(URSS);deasemenea si 7A7(USA) echivalentul cu soclu loktal.

[DanM]

Acum 5 ore, Усилитель a spus:

Nu ciaina , sunt depozite din europa cu stocuri la pret rezonabil....

https://www.reichelt.com/de/en/electron-tube-pentode-octal-8-pin-6-3-v-tube-6sk7-p258579.html

Eu ziceam de butonase...

https://www.aliexpress.com/item/32866275800.html?spm=a2g0o.cart.0.0.5af13c005sxZST&mp=1

https://www.aliexpress.com/item/32880218785.html?spm=a2g0s.9042311.0.0.3d994c4deifpyU

Acum 2 ore, Lcon a spus:

Cred ca am eu 6K3(URSS);deasemenea si 7A7(USA) echivalentul cu soclu loktal.

7A7 nu pot sa merg cu ele, nu am socluri... si apoi ParaSet a fost cu soclu octal... Deci daca va puteti dispensa de 2 buc. 6K3, m-ar incanta. Sa-mi spuneti un pret, va rog.

[Lcon]

Caut sa vad daca am 2buc.si va anunt.

Nu ar merge cumva si 6K4 ?

http://rutubes.com/product/6k4-6sg7-tube/

[Lcon]

Am mai gasit si acestea : 6SK7GT=NIB=1buc. / 12SK7GT=NIB=2buc. / 

sunt cu soclu octal,dar balonul este de sticla.

[Lcon]

6K4=NOS=1buc. si NIB=1buc.

6K3=NOS=1buc. si inca una despre care nu pot spune nimic...prezinta cateva puncte de rugina,vopsea exfoliata...poate fi lampa folosita,sau la fel de bine poate fi un NOS.

Daca doriti foto da-ti va rog un  nr.de wapp pe mp.