hi, what filter capacitors did you use for the power supply?
@pcbaudio2 ай бұрын
simple capacitor filter
@jam7292 ай бұрын
Sound cheap
@fantamancinque94872 ай бұрын
Sarei interessato, come posso fare? Grazie
@pcbaudio2 ай бұрын
www.ebay.it/itm/364863309295
@stefanoalvisi27583 ай бұрын
Sarà in vendita?
@pcbaudio2 ай бұрын
send me email
@attilacanarinis52443 ай бұрын
Bello, ma il progetto? Dove lo posso trovare? E il manuale che consulti nel video dove si scarica? Grazie
@pcbaudio3 ай бұрын
trattasi del modello scuola radio elettra , il manuale si trova in rete
@ruslantagaibekov3 ай бұрын
How to order this board, can you give a link
@pcbaudio3 ай бұрын
Send me email , tks
@DontMindMeMining3 ай бұрын
Thank you
@emanueledionisi8553 ай бұрын
Bel progetto
@keeper18553 ай бұрын
What kind of tubes you can test?
@pcbaudio3 ай бұрын
all tubes
@indiano7463 ай бұрын
Che prezzo fanno quelli sotto
@pcbaudio3 ай бұрын
quelli sotto?
@indiano7463 ай бұрын
@@pcbaudio si
@pcbaudio3 ай бұрын
@@indiano746 non capisco comunque x info sai dove contattarmi , tks
@Mr.EeToMyself3 ай бұрын
Classic.
@DontMindMeMining3 ай бұрын
nice video, i tried to connect to a 2amp fan and looks like it wont start it, do you have revcomendation of transistor for 2amp fan 12v fan?
@pcbaudio3 ай бұрын
usa a darlington tr
@DontMindMeMining3 ай бұрын
Thanks, will try TIP141
@andyb-fq3qs3 ай бұрын
that's awesome, do you have a video how to build it and the parts list?
@pcbaudio3 ай бұрын
you can find the board full assembled on line , no kit
@eliseovazquez65464 ай бұрын
Esta comprobado su efectividad ??
@seraphin_creates4 ай бұрын
I like it. Simple design, nice and clean execution :D
@user-ke9rw2pi2g4 ай бұрын
This is a DOZ preamplifier, I also built one. Why didn’t you use stabilized power?
@mithundebbarma54404 ай бұрын
Price
@johnny82274 ай бұрын
Con la regolazione tramite l'oscilloscopio, a quanto tieni il volume di uscita? Minimo, intermedio o massimo? Grazie
@pcbaudio4 ай бұрын
ce scritto nel video , thanks
@johnny82274 ай бұрын
@@pcbaudioCiao, grazie per la risposta. Il mio problema è che ho un amplificatore da mixer, ha sia la regolazione del volume in ingresso che in uscita. Non so a quanto impostare tutte e due quando collego il carico da 8 ohm Mi sembra che questo piccolo amplificatore non abbia quelle regolazioni :)
@Schlipperschlopper4 ай бұрын
I did my phonostage using orig 1960s components (gemanium transistors) and plans from RADIO RIM and Bavarian Broadcast company ;-) kzread.info/dash/bejne/qoyAps-mfJufiqw.html
@nesteride19754 ай бұрын
Hello I am from Romania and I want this amplifier Is it possible to sell me such a clone??
@pcbaudio4 ай бұрын
Write me email for request , tks
@mauriziocesari26214 ай бұрын
Io avrei messo gli occhielli sui connettori delle casse acustiche,bella realizzazione
@gino32864 ай бұрын
hi very nice project indeed I have a kind question I see 5:03 that the voltage gain is 7.2 times Is there a way to lower that by changing some value in the schema ? i really dont understand why line preamps have usually such high gain when 2Vrms are usually enough to get max power from a power amp 2 or 3 times would be perfect for me Thanks a lot gino
@pcbaudio4 ай бұрын
you have to use preamplifier when amplifier need gain for max power output , tks
@gino32864 ай бұрын
@@pcbaudio hi thanks for the kind reply Actually i tried some passive volume controller but the sound is flat without dynamics I think that a preamp is very useful in a chain and i prefer the preamp + power amp solution The BOZ is very nice but the gain a little to much So i am trying to understand if it can be lowered changing some parts in the schema The project is very good sounding indeed
@pcbaudio4 ай бұрын
use a pot volume for gain controller@@gino3286
@mauriziocesari26214 ай бұрын
Ottimo lavoro
@gino32864 ай бұрын
Hi congratulations for your creation In particular i like very much the solution chosen for heatsink Very smart indeed I know the originals and they should output around 45W/8ohm per channel with low distortion I am trying to understand the reason of this lower output Do you have the ratings of the transformer ? if i am not wrong the original should be a 20V-0-20V unit
@johnmenzies68654 ай бұрын
That is rather glorious.
@pawenalepa16825 ай бұрын
Please make some sample how it sounds 😊
@pcbaudio5 ай бұрын
impossible to understand how it sounds through internet streaming, wrong approach. I tell you it sounds great
@mogwai775 ай бұрын
amazing - nice job
@AubMar5 ай бұрын
Hey, upgrade your output transistors to the original 2SD844 and 2SB754 - even get used ones "pulls" - the difference is absolutely INCREDIBLE and worth any money!
@nicolatorri63255 ай бұрын
Perché non hai ruotato i trasformatori di uscita non hai considerato i ronzii da flussi dispersi ?
@pcbaudio5 ай бұрын
Certo , prova fatta all' inizio , nessun flusso disperso, quindi ho lasciato così.
@nicolatorri63255 ай бұрын
@@pcbaudiobene ora un bello chassis completera l'oggetto anche dal punto di vista estetico , complimenti mandaci qualche file musicale grazie
@pcbaudio5 ай бұрын
@@nicolatorri6325 incabinato e venduto tre anni fa , suona bene
@mki20515 ай бұрын
Got sound or not after completed ?
@pcbaudio5 ай бұрын
It doesn't ring, I keep it as a doorstop
@ian-qi5ho5 ай бұрын
first path gets narrower ? i
@electrokatt22466 ай бұрын
Nicely done ,can you tell me where I can buy these pcb`s ?
@pcbaudio6 ай бұрын
ebay : pcb-audio
@MatthewNorthArchive6 ай бұрын
errr 400+ volts all nicely exposed there....
@pcbaudio6 ай бұрын
Yes, i 'll make a protection ::::,))) i know
@mauriziocesari26216 ай бұрын
Ottimo
@edyrasoe1156 ай бұрын
Saya bisa pesan kit nyayg lengkap
@pcbaudio6 ай бұрын
Anda dapat memintanya dengan mengirimkan email, terima kasih
@pcbaudio6 ай бұрын
transformer used : shop.piemme-elektra.it/Products/7583 shop.piemme-elektra.it/Products/8779
@stefanoalvisi27586 ай бұрын
All' uscita casse non andrebbe collegato il carico di 8 ohm?
@pcbaudio6 ай бұрын
il bias e' la corrente che circola nei finali di potenza e non va sul carico quindi non e' necessario collegarlo
@edivaldofloripes2876 ай бұрын
Os amplificador volvulado tem uma qualidade sonora muito boa
@manueldasneves366 ай бұрын
I love it but ...What are the references of the transformers used ? The link does not send directly to it...
I doubt if music plays while he solders but we have listen to it.
@Dave_____7 ай бұрын
Is having the circuits around the tube exposed like that a potential for high voltage shock to the user?
@pcbaudio7 ай бұрын
tubes and the board need to be protected externally with a casing...yessss
@wilfredocortez83277 ай бұрын
low power amplifier.
@keeper18557 ай бұрын
I like push pull amps.I build many of them !pcl86 or el84 are tiny tube but powerful with fantastic sound!Not everyone like SE!
@pcbaudio7 ай бұрын
sound very good..tks
@leonelalvarado48797 ай бұрын
Hermano que gran proyecto! Te felicito! Yo tengo ese diagrama! Entonces si funciona muy bien? Donde compraste el transformador de salida? Que impedancia le colocaste?
Пікірлер
Very cool. I'm sure it sounds great !!
So beautiful
Wow! Looks great!
pcb : www.ebay.it/itm/364863309295
Ein Bausatz?
Nice
hi, what filter capacitors did you use for the power supply?
simple capacitor filter
Sound cheap
Sarei interessato, come posso fare? Grazie
www.ebay.it/itm/364863309295
Sarà in vendita?
send me email
Bello, ma il progetto? Dove lo posso trovare? E il manuale che consulti nel video dove si scarica? Grazie
trattasi del modello scuola radio elettra , il manuale si trova in rete
How to order this board, can you give a link
Send me email , tks
Thank you
Bel progetto
What kind of tubes you can test?
all tubes
Che prezzo fanno quelli sotto
quelli sotto?
@@pcbaudio si
@@indiano746 non capisco comunque x info sai dove contattarmi , tks
Classic.
nice video, i tried to connect to a 2amp fan and looks like it wont start it, do you have revcomendation of transistor for 2amp fan 12v fan?
usa a darlington tr
Thanks, will try TIP141
that's awesome, do you have a video how to build it and the parts list?
you can find the board full assembled on line , no kit
Esta comprobado su efectividad ??
I like it. Simple design, nice and clean execution :D
This is a DOZ preamplifier, I also built one. Why didn’t you use stabilized power?
Price
Con la regolazione tramite l'oscilloscopio, a quanto tieni il volume di uscita? Minimo, intermedio o massimo? Grazie
ce scritto nel video , thanks
@@pcbaudioCiao, grazie per la risposta. Il mio problema è che ho un amplificatore da mixer, ha sia la regolazione del volume in ingresso che in uscita. Non so a quanto impostare tutte e due quando collego il carico da 8 ohm Mi sembra che questo piccolo amplificatore non abbia quelle regolazioni :)
I did my phonostage using orig 1960s components (gemanium transistors) and plans from RADIO RIM and Bavarian Broadcast company ;-) kzread.info/dash/bejne/qoyAps-mfJufiqw.html
Hello I am from Romania and I want this amplifier Is it possible to sell me such a clone??
Write me email for request , tks
Io avrei messo gli occhielli sui connettori delle casse acustiche,bella realizzazione
hi very nice project indeed I have a kind question I see 5:03 that the voltage gain is 7.2 times Is there a way to lower that by changing some value in the schema ? i really dont understand why line preamps have usually such high gain when 2Vrms are usually enough to get max power from a power amp 2 or 3 times would be perfect for me Thanks a lot gino
you have to use preamplifier when amplifier need gain for max power output , tks
@@pcbaudio hi thanks for the kind reply Actually i tried some passive volume controller but the sound is flat without dynamics I think that a preamp is very useful in a chain and i prefer the preamp + power amp solution The BOZ is very nice but the gain a little to much So i am trying to understand if it can be lowered changing some parts in the schema The project is very good sounding indeed
use a pot volume for gain controller@@gino3286
Ottimo lavoro
Hi congratulations for your creation In particular i like very much the solution chosen for heatsink Very smart indeed I know the originals and they should output around 45W/8ohm per channel with low distortion I am trying to understand the reason of this lower output Do you have the ratings of the transformer ? if i am not wrong the original should be a 20V-0-20V unit
That is rather glorious.
Please make some sample how it sounds 😊
impossible to understand how it sounds through internet streaming, wrong approach. I tell you it sounds great
amazing - nice job
Hey, upgrade your output transistors to the original 2SD844 and 2SB754 - even get used ones "pulls" - the difference is absolutely INCREDIBLE and worth any money!
Perché non hai ruotato i trasformatori di uscita non hai considerato i ronzii da flussi dispersi ?
Certo , prova fatta all' inizio , nessun flusso disperso, quindi ho lasciato così.
@@pcbaudiobene ora un bello chassis completera l'oggetto anche dal punto di vista estetico , complimenti mandaci qualche file musicale grazie
@@nicolatorri6325 incabinato e venduto tre anni fa , suona bene
Got sound or not after completed ?
It doesn't ring, I keep it as a doorstop
first path gets narrower ? i
Nicely done ,can you tell me where I can buy these pcb`s ?
ebay : pcb-audio
errr 400+ volts all nicely exposed there....
Yes, i 'll make a protection ::::,))) i know
Ottimo
Saya bisa pesan kit nyayg lengkap
Anda dapat memintanya dengan mengirimkan email, terima kasih
transformer used : shop.piemme-elektra.it/Products/7583 shop.piemme-elektra.it/Products/8779
All' uscita casse non andrebbe collegato il carico di 8 ohm?
il bias e' la corrente che circola nei finali di potenza e non va sul carico quindi non e' necessario collegarlo
Os amplificador volvulado tem uma qualidade sonora muito boa
I love it but ...What are the references of the transformers used ? The link does not send directly to it...
shop.piemme-elektra.it/Products/7583 shop.piemme-elektra.it/Products/8779
shop.piemme-elektra.it/Products/7583 shop.piemme-elektra.it/Products/8779
I doubt if music plays while he solders but we have listen to it.
Is having the circuits around the tube exposed like that a potential for high voltage shock to the user?
tubes and the board need to be protected externally with a casing...yessss
low power amplifier.
I like push pull amps.I build many of them !pcl86 or el84 are tiny tube but powerful with fantastic sound!Not everyone like SE!
sound very good..tks
Hermano que gran proyecto! Te felicito! Yo tengo ese diagrama! Entonces si funciona muy bien? Donde compraste el transformador de salida? Que impedancia le colocaste?
links in description , tks
shop.piemme-elektra.it/Products/7583 shop.piemme-elektra.it/Products/8779