JBoys Posted December 16, 2023 Posted December 16, 2023 (edited) Further Information: Kondo-San designed Gakuoh KSL 300B monaural power amplifier In excellent condition, with original crates and packing, manual and Certificate of Provenance. Original owner since 2010. Gakuoh push pulls are 30 watt 300B valve-rectified monoblocks, each with volume control and an on/off switch. 2 x 300B 3 x 5687 input driver 1 x GZ 34 valve rectifier Proprietary hand-made silver foil and mica coupling capacitors and twin differentially balanced Tango mains transformers are used. The power supply choke is also Tango. The proprietary hand-wound output transformers use age-annealed pure silver primary and secondary windings. The amps are fully hardwired with KSL age-annealed silver wire and a look inside reveals a work of real passion and diligence, in the most beautiful hand-made, non-shortcut, fabulously executed way. Not a circuit board in sight. The quality of layout and soldering is very very attractive to the electrically educated eye. (Online information) * Tubes supplied with the amps are used, some might need checked or replaced. PM for more info. Edited December 16, 2023 by JBoys 13 13 5
denimhunter Posted December 16, 2023 Posted December 16, 2023 Hi perhaps clarify, - is it 100, 220 or 240v? - what are the tubes included? Thanks 1
JBoys Posted December 16, 2023 Author Posted December 16, 2023 57 minutes ago, denimhunter said: Hi perhaps clarify, - is it 100, 220 or 240v? - what are the tubes included? Thanks 240V Amperex 5687 Mullard GZ34 Electro - Harmonix 300B 1
Mendes Posted December 16, 2023 Posted December 16, 2023 1 hour ago, DVDHack said: They're pretty... Pretty spectacular............ 1 1
kefacurus Posted December 19, 2023 Posted December 19, 2023 I am using a quad of electro-harmonix 300b and they have a nice balance across the board and are very well controlled and deep in the bass. 2
ENIGMA Posted December 19, 2023 Posted December 19, 2023 On 16/12/2023 at 6:18 PM, denimhunter said: Hi perhaps clarify, - is it 100, 220 or 240v? - what are the tubes included? Thanks We wants it, precious precious precious,..................you know you wants it!.........................................my precious....
Colonel Sanders Posted December 20, 2023 Posted December 20, 2023 (edited) The 5687 is an excellent driver! Amazing that very few amps use it. Edited December 20, 2023 by Colonel Sanders 1
JBoys Posted December 28, 2023 Author Posted December 28, 2023 Thank you for all your interest and comments. The amps have been sold elsewhere. 2 1
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