imhififan
Responses from imhififan
| How to choose an upgraded tonearm. It’s also amazing the amount all of us don’t know. Like why an outboard pod is not advisable, especially the pods shown in those photos Technically, outboard armpod is not the best solution, but OP want to try other tonearm without drilling, th... | |
| How to choose an upgraded tonearm. I’m not going to take a chance on doing any type of modification to the table of my VPI Classic 2. How about an outboard armpod and transform your table to dual arm setup? https://www.whatsbestforum.com/threads/outboard-armpod-project-for-sme-... | |
| Accuphase E-260 Voltage Conversion (100V to 230V) @frankhhh As I mentioned, confirm which wire belongs to which primary winding by a DMM! If convert 100V to 220V or 230/240V, you need to 100% sure the resistance between gray wire and blue wire is 0 ohm, use a ohm meter to measure before connec... | |
| Accuphase E-260 Voltage Conversion (100V to 230V) I'm glad everything worked out fine. 🥂 | |
| Accuphase E-260 Voltage Conversion (100V to 230V) Thanks @frankhhh for posting the pictures of E-260 and E-270. If I understand you correctly, E-260 and E-270 primary winding color as follow: winding on E-260 / E-270 1. 120V orange / yellow 2. 100V red / orange 3. 0V gray / red 4. 120V yell... | |
| Accuphase E-260 Voltage Conversion (100V to 230V) @frankhhh I believe E-270 basically has the similar connection, Accuphase changed the color code on E-270 primary winding wires from E-260. Sorry I can’t see the color very clear from your picture, please confirm if the setting shown on your pi... | |
| Is rectifier tube arcing a problem? Just like seat belt and air bags, more protection is better, IMO. However, some might think that put a silicon diode in a tube power supply is a sin! If that’s the case, you can install soft start alone. The soft start device is a CL-70 NTC ther... | |
| Is rectifier tube arcing a problem? Yes, I found a picture on the web that show the details You can solder the diodes on the socket and move the wires accordingly. you can use 1N4007 diode, but UF4007 is better (lower noise) and just cost a few cents more. BTW, if you interested... | |
| Is rectifier tube arcing a problem? @gte357s IMO, reduce the capacitor value will has a bigger impact in sound quality, those 220uF capacitors are mounted into a 35mm clamp with point to point soldering. You need to find a 50uF cap with similar quality and diameter to fit into tho... | |
| Is rectifier tube arcing a problem? And the amp section schematic | |
| Is rectifier tube arcing a problem? @atmasphere This is the power supply schematic at Steve Hoffman Forums, not sure if OP’s kit has the same power transformer (C core) and same component value? | |
| Is rectifier tube arcing a problem? I need to add two diodes per tube, am I correct? Yes. BTW, do not reuse the arced tube! Usually once a tube has arced It will continue to arc at that same spot on power up. | |
| Is rectifier tube arcing a problem? Soft start will help, you also can add an UF4007 to the plate of rectifier tube to removes negative half cycle voltage and it halves the total time of voltage that feeding the arc. | |
| Is rectifier tube arcing a problem? Add a negative temperature coefficient (NTC) thermistor on the primary side of the power transformer and bypass it with a time delay relay may help. | |
| Amp with RCA and XLR Inputs PLUS a switch to Select Check out Accuphase power amp, you can connect both XLR and RCA at the same time, good thing is the input selector switch is on the front panel! Bad news is their amp are big and heavy. |