baronbeehive
Headphoneus Supremus
Yeah, I have come across the 7F7's, they are excellent, have the short pins for less interference, and more importantly are dirt cheap.You should get this too. I've never heard one, but I've also never heard anyone say that any Arcturus tube sucks. The 7F7 is electrically identical to a 6SL7 (despite the seller labeling it as a 6SN7), it just has a loctal base so you'll need an adapter. Probably LOTS of cheap and excellent 7F7's around as they don't ping much on audiophile radar scopes.
https://www.ebay.com/itm/234054306097?_trkparms=ispr=1&hash=item367eb94931:g:hjMAAOSw7DZgymCZ&amdata=enc:AQAGAAACkPYe5NmHp%2B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsSRAQR8FABHjfpFoyRlXhWmZNiEIY1ja2QEaMr2%2BAgCSpCOWAvMEZyEVqB%2BnfFB7QroYwD3uqZM5n%2FCPqBYGCM65yN%2FUCsNk6rfyFLnjSz0JRMA6Ky7l2YmDWnrJ77OFuay1XW5nz2AS2y5UT8n7VWVcFyZuPIpV1UiApnC3uXs1sG7g6SjultueodlH1yGuLmq9z%2F%2FRNaIxJc8%2FugvXy3Rjy4oNrVYAmH9mnECg9mZEGg8%2B5roBgl%2FdHmhb%2BqHjat%2BLJQ0JSAueOWFVixy8lTMR64Jx2eiaROLYFQjY0%2FSxiliFo7EtHe4TgAwgr5T3ozN6b85WlTxGigqWp5FyzaAld0I5qpehkGxgz5M0BBd%2FSzKdY60thdIKubMT4X7S4KQLvbldaKcnCeQ59AcuerWr%2Bk%2BWJVPreFPaBBRFkm%2F37CHGghGbjGcVBpvbvLfnvL16I68WS5pB8g%2FWW2Y%2BNtPcF5%2Br74hzBxnu3ZPC4jsZC%2BR7CwIq818d1cqyU0VtoS51Jm6r1eeZiPu1%2Faq8KRI9vne0deOnWYZ7G7u5WSs1NzyHfzln0TN0rSade9uwl8Xc3lmSscfw2pNQVrEnSSdii2%2FLjN6rF9jRm4Wvs0y9cq%2B%2FUuYOO0h9lT39ha1ZPfF02fWRl8hmEpFkrdYh7gv8GwZ7XUPUjwYq3Q9P9vTSiEK7jejR2tlnDpo2niK6s9hJ3eTLQ3%2BFKaFzejThy4D4s5cOI%2F4ftNjM8we0LS2THLk8eJPSsS4q1f2bYAx%2BZzqlX8xcxda65aMon%2Fl7y05POteFcqIPiLrKDprujlHNe8mUk24%2FF8TvqUtw5df%2B8I|ampidL_CLK|clp:2334524
Adapter:
https://www.ebay.com/itm/284357984013?hash=item42350e7f0d:g:vHIAAOSwQrJbUX-q