Dynaco ST-35

[Doktor]

3 minutes ago, prophet said:

Ma ne... to je 10 min. posla i 100 din. ulaganja, reverzibilan proces.  

Jeste.

Međutim, prelaskom na triodni mod. smanjiće se i snaga pojačivača.

Ne zaboravi da su Tannoy-i od 15".

Da se više ne ponavljam oko površine drajvera, njihove osetljivosti i snage amp-a.

[vladd]

Cestitke na igacki.

Naravno, zadovoljan sam stavom, prema spravi...

Ako treba nesto delova iz praistorije, a ja imam, na raspolozenju su..

[Woland]

2 minutes ago, vladd said:

Cestitke na igacki.

Naravno, zadovoljan sam stavom, prema spravi...

Ako treba nesto delova iz praistorije, a ja imam, na raspolozenju su..

možda i zatreba, čim se malo išćefim a Vrač isprazni sto, ato ti nas da ištemo

 

[prophet]

Snaga će se smanjiti a balans poboljšati. Ne predlažem kao konačno rešenje već kao privremeno i za probu. A u triodi gura i 4 komada od 18" bez problema. Može se napraviti i na prekidač. Ta kombinovana asimetrična dupla trioda ima ecc83 u prvom delu sa povelikim gain-om. I kod Lebena je slična situacija. A @Zen Mod će to već rešiti na pravi način, kada se sredi drajv onda se na preklopnik lako odlučiš volj ti trioda volj ti pentoda.

[NIXIE]

26 minutes ago, vladd said:

Ako treba nesto delova iz praistorije

Sve mi je iz prošlog veka, osim DAC-a i par tebi omiljenih kablova. Osigurači su novi, naravno.

[Zen Mod]

Mighty ZM ce da turi otpornjake koje hoce , kao i kondove koje hoce , a takodje i kratkospojnike za izbor pentoda-trioda , pa da gazda veze konja kako mu volja

ono , nije se Woli nesto dosad bunio na moje izbore , pa valjda nece ni sad

a sprava ce izgleda isto kao sto i sad izgleda , izuzev sto ce sve bude novo , sto mora da bude

[Doktor]

44 minutes ago, prophet said:

Snaga će se smanjiti a balans poboljšati  . . . .

Ja tu razliku između pentodnog u odnosu na triodni mod ( na stranu duple razlike u snazi ) doživljavam upravo ovako kao je napisao član @Billm sa The Gear Page foruma ( forum za muzičare ).

https://www.thegearpage.net/board/index.php?threads/triode-vs-pentode-mode.647871/

 

" It's an inexpensive way for manufacturers to add a feature to an amp and to make a somewhat different tone available.

Your output tubes are typically pentodes, meaning that they have five elements inside (plate, cathode, control grid, screen grid, suppressor grid). Pentodes (and beam power tetrodes, such as the 6L6/6V6 family) are very efficient... as tubes go. The screen grid eliminates the capacitance between the plate and the control grid, which makes the tube more linear and controls electron flow more accurately, for more power.

Connecting the screen grid directly to the plate supply (same voltage as the plate) makes the tube function more like a triode, hence the name. It almost halves the maximum power, so people sometimes call it a half-power switch. The tube wastes power in triode mode.

At anything less than full volume, the difference between full and half power is not that noticeable. It definitely does not halve the loudness of the amp.

Triode mode on a pentode sounds thicker, mushier, less articulate. Some people think it sounds more bluesy; I think it just sounds sloppy, like the difference between sober and drunk. "

[Woland]

Mighty ZM ce da turi otpornjake koje hoce , kao i kondove koje hoce , a takodje i kratkospojnike za izbor pentoda-trioda , pa da gazda veze konja kako mu volja
ono , nije se Woli nesto dosad bunio na moje izbore , pa valjda nece ni sad
a sprava ce izgleda isto kao sto i sad izgleda , izuzev sto ce sve bude novo , sto mora da bude

e neka si im reko

[prophet]

Ma hvala Bogu, kakva promena izgleda, treba se držati originala. Amp je odličan, trafoi takođe. 

[Zen Mod]

pen-tri

vid' male prekidacice na slikicama , o'ma kod EL-ki

 

Woli ce ima jumpere ozdo ...... kad proba , ostavi kako voli

 

https://www.diyaudio.rs/choky/Iskra_cinema_gear.html

 

[prophet]

Još bolje, da ne bušite šasiju.

[vladd]

46 minutes ago, Doktor said:

Ja tu razliku između pentodnog u odnosu na triodni mod ( na stranu duple razlike u snazi ) doživljavam upravo ovako kao je napisao član @Billm sa The Gear Page foruma ( forum za muzičare ).

https://www.thegearpage.net/board/index.php?threads/triode-vs-pentode-mode.647871/

 

" It's an inexpensive way for manufacturers to add a feature to an amp and to make a somewhat different tone available.

Your output tubes are typically pentodes, meaning that they have five elements inside (plate, cathode, control grid, screen grid, suppressor grid). Pentodes (and beam power tetrodes, such as the 6L6/6V6 family) are very efficient... as tubes go. The screen grid eliminates the capacitance between the plate and the control grid, which makes the tube more linear and controls electron flow more accurately, for more power.

Connecting the screen grid directly to the plate supply (same voltage as the plate) makes the tube function more like a triode, hence the name. It almost halves the maximum power, so people sometimes call it a half-power switch. The tube wastes power in triode mode.

At anything less than full volume, the difference between full and half power is not that noticeable. It definitely does not halve the loudness of the amp.

Triode mode on a pentode sounds thicker, mushier, less articulate. Some people think it sounds more bluesy; I think it just sounds sloppy, like the difference between sober and drunk. "

Odlicno im je rekao, a pride je inostranac iz Dzrzija, pa ce da se slusa..  

Ja licno sumnjam da postoji "zavera", da se lampe arce i da im se nabija cena, jbga trziste.

BTW, pentoda je kontinentalna igracka, Angli su odlepili kada je Philips zveknuo patent na doticnu, pa su izmozgali tetrodu, sklonu izbijanju, ali njiovu...pa je red da se protezira...malo je copava, ali si je nasa  

[NIXIE]

11 minutes ago, vladd said:

Some people think it sounds more bluesy

E ako je bolje za blues, onda mora u triode modu da se sluša stalno. Naročito uz fudbalsko prvenstvo da lakše prihvatimo gubitke.

[Srecko]

Čestitam!

[Leonardo]

Čestitke za nabavku ovog neostarelog dedice. Sad će nastane forumska potražnja za istim, i ode cena ^  

[Zen Mod]

ih

 

ko da neko cita ovaj forum ......

 

[vladd]

6 hours ago, Woland said:

dakle, godište 1963 (dobra godina, vršnjaci smo)

 

35 minutes ago, Leonardo said:

neostarelog dedice

[skrstic]

4 hours ago, Doktor said:

Ja tu razliku između pentodnog u odnosu na triodni mod ( na stranu duple razlike u snazi ) doživljavam upravo ovako kao je napisao član @Billm sa The Gear Page foruma ( forum za muzičare ).

https://www.thegearpage.net/board/index.php?threads/triode-vs-pentode-mode.647871/

 

" It's an inexpensive way for manufacturers to add a feature to an amp and to make a somewhat different tone available.

Your output tubes are typically pentodes, meaning that they have five elements inside (plate, cathode, control grid, screen grid, suppressor grid). Pentodes (and beam power tetrodes, such as the 6L6/6V6 family) are very efficient... as tubes go. The screen grid eliminates the capacitance between the plate and the control grid, which makes the tube more linear and controls electron flow more accurately, for more power.

Connecting the screen grid directly to the plate supply (same voltage as the plate) makes the tube function more like a triode, hence the name. It almost halves the maximum power, so people sometimes call it a half-power switch. The tube wastes power in triode mode.

At anything less than full volume, the difference between full and half power is not that noticeable. It definitely does not halve the loudness of the amp.

Triode mode on a pentode sounds thicker, mushier, less articulate. Some people think it sounds more bluesy; I think it just sounds sloppy, like the difference between sober and drunk. "

Ono što sam ja slušao više volim tu lampu kao triodu od pentode. Naravno moje mišljenje i podrška ugrađivanju otpornika i prekidača. 

[Doktor]

1 minute ago, skrstic said:

Ono što sam ja slušao više volim tu lampu kao triodu od pentode. Naravno moje mišljenje i podrška ugrađivanju otpornika i prekidača. 

Da se razumemo. EL-84 je pentoda.

https://en.wikipedia.org/wiki/EL84

Verovatno si mislio na to da ti se vise svidja EL-84, pentoda, koja radi u triodnom spoju iliti triodnom modu.

[skrstic]

To sam i napisao.

6BQ5 / EL84 / 6P14P

[Doktor]

42 minutes ago, skrstic said:

To sam i napisao.

6BQ5 / EL84 / 6P14P

Definitivno je dvosmerna ulica izmedju nas.

Nit' ti razumes mene, nit' ja tebe. 

[Srecko]

[mention=52]Doktor[/mention]-e, preptpostavljam da ste procitali ono sto kaže Christian Steingruber o ovim pojacavacima u vezi sa ESL.

 

“DYNACO ST-70

Valve ( EL 34 )

1950-USA

 

I unfortunately forgot to include this classic USA amplifier in my former editions . I could not evaluate the ST-70 on my Quads yet , but Sheldon Stokes and Ernest Ruiz have tried so and speak very enthusiastic about the combination. Aside to Marantz the Dynaco company could be regarded as the first "audiophile" company in the States. Many well known engineers have been employed there , e.g. Mr. David Hafler. Actually the ST-70 was Mr. Hafler's design and it proved to be a success. What separates Dynaco from other companies is that the American company also offered their amplifiers as DIY kits and this expanded the distribution of their products even further. Aside to the classic EL 34 output tubes, the ST-70 used a rare 7199 "compound tube" which consists of a triode and a pentode. Many tuning companies ( Audio Research, Van Alstine, Old Colony Sound ) have been offering tuning kits for the ST-70 for decades and it is reported that with these modifications the ST-70 sounds even better. Very recommended, but difficult to source in Europe”.

 

Mislim da treba sačekati da ga [mention=665]Woland[/mention] sredi kako već on zna i ume-najbolje na svetu [emoji3] (lako je njemu kad su mu Vrač i Sava najbolji drugari), a onda mu ga nekako oteti [emoji3].