- #72 [hahayanyan], 21-05-24 23:23
- #71 [hahayanyan], 21-05-24 11:09hi hi long longggggggggg hing
happy to share the reason you goes for 石墨 but not other material ?
it can be...haha" i have them around "
etc
haha - #70 [長長影子], 21-05-17 22:07我睇返啲舊相,個氣浮盤嘅轉軸其實就係咁樣咁簡單,氣泵熄咗嗰時個凹凸位幾乎完全扣實,就算有落油基本上用力拉都拉佢唔郁,當開著嗰氣泵有氣到嗰時先至可以轉得郁而且轉得非常之暢順,個摩擦力嘅對比係相當之大,除咗潤滑油之外我諗另一個可玩之處應該就係依據轉盤嘅重量嚟調校氣壓等等。
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- #69 [rcywong], 21-05-17 21:48It is not car battery. It is Varta Microbattery. It has 2500mAh capacity.
- #68 [hahayanyan], 21-05-17 20:44It has been so long..... Does not hear people using thst type of car battery for hifi applications. Haha
I used to use a panasonic car battery for a turntable.. Long time ago
Same as all car battery.. They never tell much about their parameter, however hard to believe they are not over spec for that applications.. Haha
最後修改時間: 2021-05-17 20:45:47 - #67 [rcywong], 21-05-17 16:26#64, Is using Varta rechargeable batteries.
- #66 [hahayanyan], 21-05-17 15:26yes i think..in order to do thing property...i need those laser displacement sensor haha ( 加速規 ..around and used by other of those product i made for drone controller amd a custom made vibration tester for motor... )
最後修改時間: 2021-05-17 15:33:29 - #65 [長長影子], 21-05-17 15:23
我以前黐兩隻加速規靠比較兩邊嘅訊號嚟估算轉盤嘅隔震率,後期再加埋 laser displacement sensor 同埋比較埋唱頭 pick-up 不過冇錄底。
- #64 [hahayanyan], 21-05-17 15:10haha,,, if it is battery...
then if u want to ensure it is even better performance...
show us the battery... it is for sure it is better battery for such application.. haha
take a look together..haha, may be it is better replacement Cell when it is needed
最後修改時間: 2021-05-17 15:12:53 - #63 [rcywong], 21-05-17 15:03#60
- #62 [hahayanyan], 21-05-17 14:59
Haha
覺得這個測試有沒有意義呢, 有冇任何代表性呢
#61 可以分享下這一個 覺悟 about analog playback related or hifi overall? 內容嗎
最後修改時間: 2021-05-17 15:03:01 - #61 [長長影子], 21-05-17 14:51"影子兄,I assume your turntable motor is operating in 12V AC to DC adaptor. Change it to pure DC (Rechargeable batteries) is better than AC adaptor. Try it sure win."
<- 我冇改用充電池,但已經改咗用自己 DIY 嘅 12 Vdc供電。 但近來有啲覺悟,有啲唔想再投資太多包含時間落喱個坑度,因為我平時唔會買新碟,我唔算有好多碟,得嗰兩佰零隻,宜家越來越少用,除非之後又重錄某啲唱片。 ^-^!
最後修改時間: 2021-05-17 14:56:29 - #60 [hahayanyan], 21-05-17 14:50#59
u are using battery ? - #59 [rcywong], 21-05-17 14:40For diyer.
- #58 [rcywong], 21-05-17 14:34影子兄,I assume your turntable motor is operating in 12V AC to DC adaptor. Change it to pure DC (Rechargeable batteries) is better than AC adaptor. Try it sure win.
- #57 [hahayanyan], 21-05-17 14:32#55
guess u have someone checked the original controller?
it is hard to think a transistor based device is beyond repair......
#56
yes..we goes for what we feel easier.., how difficult for u to get the anodizing thickness correct ?
最後修改時間: 2021-05-17 14:35:29 - #56 [長長影子], 21-05-17 14:32當然亦可以選擇改摩打電路個 range,雖然我有兩組摩打,但最後都懶得拆開嚟改。
- #55 [rcywong], 21-05-17 14:28#50, It is because both original motor and controller were not working, and part was no longer supplied for replacement, therefore, I purchased a separate motor from Mainland China. This Oracle turntable serviced me since 1988......ha..ha...still alive.
- #54 [hahayanyan], 21-05-17 14:26#53
can that be done by giving more range of the VR at the controller.. but not the physical sizes of the driving pulley, i guess u may looked at that option too ?
then we need something like that... and those software based frequency counter..etc..
what else we need
https://elusivedisc.com/ortofon-stereo-test-record-180g-lp/
最後修改時間: 2021-05-17 14:30:02 - #53 [長長影子], 21-05-17 14:23我個摩打本身轉速有得微調,但換咗盤之後都仲要試咗咁多粒拉輪先至搵到啱。
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may be there is some use for one of those standard alpa gel partsssssssssssssssssssss
https://hkcn.rs-online.com/web/c/engineering-materials-industrial-hardware/anti-vibration-levelling-components/anti-vibration-mounts/?applied-dimensions=4294620334