In Reply to: RE: HK Citation 2 rebuild questions posted by Michael Samra on April 15, 2015 at 21:07:37:
Ok all....I'm not quite sure how to respond. I feel like you've all just beaten me up on the schoolyard and stolen my lunch money! So here goes...
To Michael Samra-I think if you actually reread my initial post in response to DAK we agree a lot more than you seem to think. Regarding the electrolytics I specifically said to replace them, just like you. We also agree about where to put the Sprague 160 capacitors. The "front" meant away from the output tubes in the early stages of the amp. It's not about leaving original parts in to say it's original. It's about leaving the right parts in that sound better than if replaced with newer, less music-friendly parts. And in reference to sacrificing reliability for sound quality, what I mean is that older parts can lack the overall reliability that new parts have simply because they are new. Quite obviously I don't recommend using leaking, cracked or bulging caps. That's ridiculous to suggest!
Where I disagree with you is on increasing the power supply capacitance. Its not usually a good thing in a well designed amplifier. These were highly engineered and they didn't throw in random size capacitors willie nillie. Or cheap out on small caps and then turn around and spend lavishly on oversized output transformers which are of the highest quality along with everything else. Would that make any sense? Getting back to the capacitors, the problem with greatly altering the amount of capacitance is that you can hear that it changes the speed and flow of the power supply which in turn effects the speed and flow of the amp and its overall coherence. Incidentally, the same holds true for guitar amps. Increasing the capacitance often can change the responsiveness(speed) of the amp to the player.
Again these are my opinions, its what I have experienced and heard. Its not meant to be contentious.
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Follow Ups
- RE: HK Citation 2 rebuild questions - Ping 18:47:48 04/16/15 (44)
- RE: HK Citation 2 rebuild questions - Michael Samra 00:19:07 04/18/15 (2)
- RE: HK Citation 2 rebuild questions - Jim McShane 09:17:30 04/18/15 (1)
- RE: HK Citation 2 rebuild questions - Michael Samra 12:56:13 04/18/15 (0)
- I call BULLSH_T! - Eli Duttman 14:20:48 04/17/15 (0)
- RE: HK Citation 2 rebuild questions - Jim McShane 09:19:29 04/17/15 (39)
- RE: HK Citation 2 rebuild questions - Ping 11:56:56 04/18/15 (36)
- RE: HK Citation 2 rebuild questions - Michael Samra 21:41:24 04/18/15 (27)
- RE: HK Citation 2 rebuild questions - Ping 10:13:13 04/19/15 (4)
- RE: HK Citation 2 rebuild questions - Michael Samra 03:27:06 04/20/15 (0)
- Tough crowd... - Triode_Kingdom 13:47:50 04/19/15 (2)
- RE: Tough crowd... - Eli Duttman 20:15:01 04/19/15 (1)
- RE: Tough crowd... - Triode_Kingdom 06:41:39 04/20/15 (0)
- RE: HK Citation 2 rebuild questions - Triode_Kingdom 22:34:11 04/18/15 (21)
- RE: HK Citation 2 rebuild questions - Michael Samra 09:54:41 04/19/15 (20)
- RE: HK Citation 2 rebuild questions - Triode_Kingdom 11:19:41 04/19/15 (19)
- RE: HK Citation 2 rebuild questions - Jim McShane 14:23:44 04/19/15 (2)
- RE: HK Citation 2 rebuild questions - Triode_Kingdom 15:38:05 04/19/15 (0)
- The MFA 120 used Citation II output iron - Freo-1 14:28:29 04/19/15 (0)
- RE: HK Citation 2 rebuild questions - Michael Samra 11:37:22 04/19/15 (15)
- RE: HK Citation 2 rebuild questions - Triode_Kingdom 12:06:39 04/19/15 (8)
- RE: HK Citation 2 rebuild questions - Michael Samra 13:11:27 04/19/15 (7)
- Depends how beat up it is... - Freo-1 13:23:28 04/19/15 (6)
- RE: Depends how beat up it is... - Jim McShane 14:34:20 04/19/15 (5)
- Not a big fan of the voltage doubler, nor the HEAT they generate - Freo-1 14:42:06 04/19/15 (4)
- Wow..The Mac Mc240 and the Mc75s and the Mc225 are all doublers - Michael Samra 04:40:16 04/22/15 (1)
- Good Information - Freo-1 16:53:34 04/24/15 (0)
- RE: Not a big fan of the voltage doubler, nor the HEAT they generate - unclestu 15:08:46 04/19/15 (1)
- RE: Not a big fan of the voltage doubler, nor the HEAT they generate - Triode_Kingdom 15:44:28 04/19/15 (0)
- RE: HK Citation 2 rebuild questions - jazbo8 11:45:07 04/19/15 (5)
- Not true - Triode_Kingdom 12:53:47 04/19/15 (4)
- RE: Not true - hennfarm 23:43:06 04/19/15 (0)
- RE: Not true - jazbo8 14:14:34 04/19/15 (0)
- Very true with the old kit amps like Eico ,Heathkit and Dynaco. - Michael Samra 13:29:31 04/19/15 (1)
- Also Scott, Fisher, HK, Sansui, Pioneer, Stromberg, etc. etc. - Triode_Kingdom 14:12:35 04/19/15 (0)
- RE: HK Citation 2 rebuild questions - Jim McShane 12:55:49 04/18/15 (7)
- RE: HK Citation 2 rebuild questions - Ping 07:57:58 04/19/15 (6)
- RE: HK Citation 2 rebuild questions - Jim McShane 15:57:55 04/19/15 (5)
- RE: HK Citation 2 rebuild questions - Ping 23:18:57 04/24/15 (0)
- Design philosophies - Triode_Kingdom 18:43:34 04/19/15 (2)
- RE: Design philosophies - Jim McShane 19:44:24 04/19/15 (1)
- RE: Design philosophies - Triode_Kingdom 05:56:04 04/20/15 (0)
- Excellent response - Freo-1 16:46:19 04/19/15 (0)
- well, that sums it pretty well...:) - PakProtector 18:19:14 04/17/15 (0)
- RE: HK Citation 2 rebuild questions - Eli Duttman 14:12:26 04/17/15 (0)