First thanks for the great video. I recently purchased a 930 myself and although it is fully functioning I am going to fully recap as it is 50 years old and all original. I hadn't really thought about replacing the transistors. Was wondering if you could tell me exactly which 250 watt transistors you used. Thanks for any help in advance. By the way I agree fully with your assessment and this is one of my favourite receivers of all time.
$350 for that was a steal, the 930 and 730 can walk amongst the giants, if not win overall, costing several thousand. Even against kr-9600, 2325 and 2275, sx-950 and many many others, my favorite receivers are also the 730 and 930. I think looks and build quality and sound alone they should be $1500-2000 if restored in todays money, i do believe their that incredible.
Agree 100%, the 730 & 930 are absolutely deserving of being placed amongst the best vintage receivers. They blow the doors off most of the cult of personality units that are 4-6 times the price. My daily driver is a 730, also have a 330b since 1997.
I just bought my first Harmon Kardon receiver its a HK 670 I should have it in a few days but I love the fact that it's also duel stage It reminds me of two separate monoblocks in one receiver I will have it fully refurbished as well. Thanks for this video
The power supply was roughly the same size as the 930s power supply. Sonically they are nearly identical. But the 1977 citation had a more sensitive tuner. W the transistor upgrade to the 930, the power output is nearly identical. 🎉
Amen brother! I rescued a 330b from a dumpster in 1997, while working for a temp agency in college. That was the beginning of my hi-do life, this little receiver actually changed my life. The sound it makes is astonishing. I bought a 730 two years ago, I will NEVER let it go. These dual power HK units are the cats ass! God Bless, and have a fine Christmas Brother.
Would you consider sharing your parts list for the upgrades? Thx. I have all the twin power units 930,730,630,430, and all the 330 single powered. Would like to restore them all. Thanks!!
Im a collector of Vintage audio as well as H.K...I own to of there turntables .3 Disc Players .& 2 Receivers From H.K..There sound quality & Reliability Is unparreled..many manufactures cant even touch.That includes crap like Modern day crap Like sony & marantz avoid!.. The only companys I would put in the same league as Harman Kardon would be some nad & Rotel .. thats about it!..Im always checking the thrift stores for there equipment..Im Hopeing to Locate one of there tape deck to replace My Luxman( still hangin in there) By the way the receivers that I own are the H.K. 3390 stereophile reviewd back in the 90s...keep me posted,Thanks
I have a 430 and just got the 930 because I loved my 430 so much…. Would it be possible to get a parts list for the upgrades? Thank you in advance and God Bless