Re: SX-100 Repair Problems - Bumblebees!
|
Thank you Dan. I was on the right track. You are correct on having problems with the colors. I have found a good chart for reference now also is helping. Thankfully there are not a lot of these in this radio. ? ? ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Dan
Sent: Friday, March 22, 2024 8:06 PM
To: [email protected]
Subject: Re: [HallicraftersRadios] SX-100 Repair Problems - Bumblebees!? ?The first three color bands determine the value. Start with the color band nearest an end. The color coding is the same as the traditional three color resistor code. In your first example below it¡¯s red, red, orange or 22 times an orange multiplier of 1000 for 22,000 pF or .0022 uF. .002 is a commonly found film cap today. Sprague Bumblebee color code values are always in pf. To convert to uF, divide by 1,000,000.? In your second photo we see red, red, yellow. That¡¯s 22 x 10000 = 220,000 pF/1,000,000 or .22 uF. Summarizing, use the typical three color resistor code. First two colors are a value, the third is the multiplier, the result is always in pF and divide by 1,000,000 to get uF. It¡¯s pretty common to have difficulty discerning some colors after ~50-70 years, especially violet, gray, brown, etc. If in doubt, locate the cap on the schematic and see what the value is declared to be. You can almost always figure it out or confirm an uncertain color and value. ?
On Mar 22, 2024, at 7:31?PM, Keith <kd4avp@...> wrote:
?Ok gentlemen.....Need help here before I make a mistake. Couple of the bees have me confused on values.?
Can I get a second opinion please?
Thanks
Keith
|
