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jose

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Posts posted by jose

  1. KGSSHV Carbon Build Thread

    in Do It Yourself

    Posted

    21 minutes ago, mwl168 said:

    I cannot tell for sure from the photos you posted but make sure your pre and post regulation filter caps are up to spec. Looks like they are all 550VDC rated? 

    I took a quick look at the Carbon amp board and I cannot think of anything you need to change going from 400 VDC rails to 450 VDC. Others might chime in if they spot someting. 

    By the way, on my setup, I can barely feel a temperature on the PSU heatsinks after hours of running my Carbon with 20mA output setting (I think my trafo has 330 vac secondaries). The amp heatsinks are a different story, they run VERY HOT, much more so than the KGSSHV. That's another thing to keep an eye on.  

    Thanks. Yes, all caps are 680uF/550VDC.  

  7. SRX-Plus Build Thread

    in Do It Yourself

    Posted

    Resistors, please check.

    100 O, 0.5 W gate stoppers for DN2540, and sense resistors   18   660-MF1/2CCT52R1000F  
    75 O, 0.5 W (source resistor for output cathode sink)   2  
    660-MF1/2CC75R0F
    		 
    180 O, 0.5 W (source resistor for output current load)   4  
    660-MF1/2CC1820F
    		*182 R
    500 O. 0.5 W   4  
    660-MF1/2CC4990F
    		*499R
    1.0 kO, 0.5 W gate stopper for 10M90S   6   660-MF1/2CC1001F  
    1.2 kO, 0.5 W (source resistor for input current sink)   2  
    660-MF1/2CC1211F
    		*1,21K
    2.0 kO, 0.5 W   4  
    660-MF1/2DCT52R2001F
    		 
    5.1 kO, 1 W/500 V   4  
    294-5.1K-RC
    		 
    124 kO, 0.5 W, 350 V rated   8  
    660-MF1/2CC1211F
    		 
    220 kO, 2 W, 500 V rated   8  
    660-PCF2C224K
    		 
    300 kO, 0.5 W, 350 V rated   4  
    660-MF1/2CC3013F
    		*301K
    500 kO, 0.5 W, 350 V rated   4  
    660-MF1/2CC4993F
    		*499K

    And trimpot...  Im´not sure about last reference (5K) please, any alternative?

    20 O multiturn trimmer for output current sink—set current to 17 mA 2  
    652-3299W-1-200LF
    100 O multiturn trimmer for output current load—set current to 7 mA 4  
    2-3299W-1-101LF
    500 O multiturn trimmer for input stage current sink—set current to 1.33 mA 2  
    652-3299W-1-501LF
    5 kO, 0.75 W multi-turn trimmer for input stage balance   2  
    652-3252W-1-502LF

  12. SRX-Plus Build Thread

    in Do It Yourself

    Posted · Edited by jose
    add PSU file

    shuntreg.jpg

    Jim thanks for the recommendation. I will take precautions when starting the psu.

    However, I do not understand one thing. On the scheme of your PSU I can see the SPX431 but on the layouts PCB Dr. Gilmore uses the TIL731. You say that it didn´t work in this circuit ... I´m not sure. Please, Is it correct?

  13. SRX-Plus Build Thread

    in Do It Yourself

    Posted

    Is the "TIL731" similar to "SPX431"?

    I can´t find any reference with TIL731

    Possible PSU bom:

     

    Part   Qty.   Mouser Ref.     Comments        
                           
    Caps                      
                           
    0,1uF/1Kv   4   505-MKS4.1/1000/10            
    0,1uF/1000v   3   539-160104J1000N-F            
    22uF/450v   2   871-B32774D4226K            
                           
    2,2uF/50v   1   647-UBT1H2R2MPD            
    100uF/16v   1         Posible cambio a 100/25v   647-UKW1E101MED
    330uF/450v   2   647-LKX2W331MESB45            
                           
    Silicon                      
                           
    IXCP10M90S   2   747-IXCP10M90S            
    STF19NM50N   2   511-STF19NM50N            
    DN2540N5G   1   689-DN2540N5-G            
    TIL731*   1         SPX431 ¿?*     701-SPX431AN-L/TR
    STTH512FP   4   511-STTH512FP            
    1N4007   2   512-1N4007              
    BZX55C15 Zener 15v 1   78-BZX55C15            
    Z4KE150A Zener 150v 1   625-Z4KE150A-E3            
    1N5952BRLG Zener 130v 3   863-1N5952BRLG            
                           
                           
    Resistor                      
                           
    10 Trimpot 1   652-3296W-1-100LF            
    100k   2   660-MF1/2CC1003F            
    100k 1,5W 1   71-CMF65100K00FKEK            
    3k*   1  
    273-3.0K-RC*
    		*Xicon 350v 3,32K KOA   660-MF1/2CC3321F
    4,7M   1   660-MF1/2DCT52R4704F            
    806k*   1   71-RN65D-F-806K* *Vishay 350v          
    1k   3   660-MF1/2CC1001F            
    15k   1   660-MF1/2DC1502F            
    15,4k   1   660-MF1/2CC1542F            
    10k   1   660-MF1/2CC1002F            
    100   1   660-MF1/2CCT52R1000F            
    30*   1   273-30-RC*   *Xicon 350v          
    10   1   660-MF1/2DC10R0F            
    1M   8   660-MF1/2CC1004F            
    82k*   1  
    273-82K-RC*
    		*Xicon 350v 82,5K* KOA   660-MF1/2DC8252F
    200 1,5W 1   71-CMF65200R00FKEK            
    133k 1W 1  
    279-H4P133KDZA
    		           
    365k 1W 2  
    279-H4P365KDCA
    		           
    590k 1W 1  
    279-H4P590KDZA
    		           
                           
                           
    Others:                      
                           
    3 pin conector   2   651-1729131              
    2 pin conector   2   651-1729128              
                           
                           

  18. HC Bike/Cycling Thread

    in Miscellaneous

    Posted

    Interesting. I think that if you have some physical problem, age, or if you are a single cyclo-tourist ( I don´t know if it term in english is correct), I can understand the motor... but in general, I think that the philosophy of the bicycle is other.

    I like to suffer while climbing a mountain pass and know that I have surpassed myself. The bike has taught me to beat me and believing in me.

    romanticism? stupidity? probably both :unsure:

  24. HC Bike/Cycling Thread

    in Miscellaneous

    Posted · Edited by jose
    orthography

    Umm thanks for the recommendation. I know that the tubular on the road is more complicated and here it´s a "strange bird". We have soft winters (nim. around 13º) so I think it doesn´t a real problem.

    Canarias is an EU territory (schengen, etc...) but with an especial VAT so If I buy something on EU (on Spain continental for example), I will pay customs... politicians :wacko::(

    Ok, I will listen you and I will continue looking Veloflex (clinchers). 68€ is a good price for two Tyres.

  25. HC Bike/Cycling Thread

    in Miscellaneous

    Posted

    Yes i use clinchers but I can change to tubular if it's necessary , the DT is tubeless ready ...and really I haven´t  any preference on road (on MTB I only want tubular of course).

    I don´t found the veloflex clinchers ¿?

    Hmmm, thanks. It's a good price Cd44!. Here in Canarias you always pay customs so I need to search a low prices on shipping. I could seek and buy a pair and wait it until burn the Conti.

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