HiFi & Professional Audio Forum
Kvarovi na komponentama i opremi, saveti za pomoc i popravku
4 posts • Page 1 of 1
Maric86 wrote:Pozdrav svima, imam jedan problem. Otisle su mi lampe na pojacalu doticne 6AN8. Al ne mogu nigde da ih nadjem. nasao sam slicne 6AN8A. E da li one mogu da ih zamene. Pojacalo je sansui AU-70
typically the A after a tube type denotes it uses a slow start filament rather than the original filament type that "flashed" brightly upon power-up due to current surge thru the nearly dead short circuit.
"A" type tubes were made so that tubes could be wired in series to share an equal amount of current properly.
Most tubes have been type "A" since the mid-60s.
Another common suffix is "W" and is usually WA or WB, denoting a heavy duty version of the updated tube.