Electronics Forum | Thu Aug 03 10:26:10 EDT 2000 | JohnW
Ok the folk's so how's your math's?? I'm trying to track down an equation for calculating the output of a set of quartz lamps as part of a thermal matching program, anyone got any hints? and Dave...don't do it doesn't count! John
Electronics Forum | Wed Nov 20 12:37:30 EST 2019 | compit
You bought quartz (at DigiKey), which should have 10 pF capacitors, and mounted on a demo board is from JFR - "(..) Load capacitance (CL): Series, 16pF, 20pF, 30pF, or specify (..)" - try changing the quartz capacitors, or check with an oscilloscope
Electronics Forum | Sat Aug 05 08:59:25 EDT 2000 | Dave F
John: Don�t do it, well at least until we better understand what you�re doing. What are you doing? Is it "heat capacity"? Heat capacity relates the change in heat to a change in temperature.
Electronics Forum | Thu Nov 29 12:40:31 EST 2001 | caldon
Hussman- I agree. Even some of the Wave soldering machine manufacturers quote High temp paint as a maintenance step. The paint step does not work well with quartz type heating elements Best regards, Cal Manncorp
Electronics Forum | Wed Jul 31 07:44:54 EDT 2002 | mzaboogie
Hi Pete, It is an alcohol based NC flux. The machine does have quartz preheaters. We are preheating to the temp specified by the flux. Thanks Chris
Electronics Forum | Fri Sep 17 02:12:16 EDT 2004 | Adam
Rob The machine is SEHO MWS8240, Fitted with a foam fluxer, a combination of IR,Quartz and Convection preheaters together with a chip and delta wave. Adam
Electronics Forum | Thu Jun 18 20:19:04 EDT 2020 | compit
I have to place the element as in the attachment. The nozzle grabs the quartz, but it is not the center of the module and I cannot recognize it correctly. How to deal with the shift? What do you treat such elements - chip, IC, other?
Electronics Forum | Fri Aug 11 17:21:43 EDT 2000 | Dave F
John: Sorry I'm tardy getting back to you on this Heat capacity = [applied voltage in volts*applied current in amps*(time ending in seconds - time start in seconds)]/(�K ending - �K start) The units of heat capacity are joules per mole-degree when
Electronics Forum | Fri Jan 13 12:12:48 EST 2006 | jimk
we have 4 bottom IR heaters and a 2 zone bottom Quartz heater (2 lamps/4 lamps) and 1 convection heater above zone 1 IR. we have very tight restrictions from customer and I could send profile view to your email if possible
Electronics Forum | Fri Aug 30 02:12:19 EDT 2013 | raqz
Hi! I have been studying the reflow process. And now, I am researching for a recommended reflow oven that can process a small to low-medium production SMT soldering. For the experts in the reflow field, please recommend a reliable reflow oven. Here
