My L-7 came with chimneys and the seller made a big deal about telling me that they were included. After looking things over, I realized that they were not helping anything due to the fan placement and the heat from the amp dripped appreciably when I removed them. They were almost touching eachother, too. I am really surprised that I didn't melt the solder out of the pins. Guess he didn't use it much and I didn't either before removing the chimneys. At least I have a pair of spares in case I get butterfingers when playing with the L-4B.
73,
John, W4AWM
-----Original Message-----
From: Ron Baker <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Cc: drakelist@www.zerobeat.net
Sent: Wed, 11 Jan 2006 23:03:01 -0500
Subject: RE: [drakelist] Drakes wanted
"Ron Baker" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Are you sure the L7 had chimney's for the 3-500Z. I have a later version which did not have then because the rear mounted fan blew air directly across the tubes. I Know the L4B had chimneys, but the L7,??? Also, check out my TR7A article. I have a later release on my website with lots of updated information. I'm not sure if the other sites having my article have the latest version. Here is the link. http://www.wb4hfn.com/DRAKE/DrakeArticles/TR7_Comparison_Article/TR7_Idenity -01.htm 73, Ron / WB4HFN -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, January 11, 2006 9:59 PM To: [EMAIL PROTECTED] Cc: drakelist@www.zerobeat.net Subject: Re: [drakelist] Drakes wanted Hi Richard, One thing you need to watch for when purchasing a TR-7A is that it is not actually a TR-7 in disguise. For a period of time, Drake sold spare face plates for the A model to anyone who wanted one. Many folks bought one to "upgrade" their TR-7. Other than the face plate, there is no outward difference in appearence between the 2 models on the front panel. There is a small difference on the rear panel and several items were added inside which were accessories on the A model. Here is a link to WB4HFNs page in the Drake museum which will explain all this in detail: Click here: Page 1 <http://www.dproducts.be/DRAKE_MUSEUM/page_1.htm> Depending on where you get your TR-7A and the physical and electrical coindition it is in, any additional filters and the PS-7 power supply, You can xpect to pay anywhere from $800.00 up. Obviously, a rig that is not pristine will sell for somewhat less, but frankly, a TR-7 is a much better deal, especually if it has the NB-7 noise blanker installed. That and the AM filter were the most expensive accessories. The L-7 is a fine little amplifier, but be sure to get one that has the original power supply if you can. The amps were shipped with either 3-400 or 3-500Z tubes. If you can find one with 3-500, they are the better choice, but I would not turn down one with 3-400s at a slightly lower price. If it has been well cared for, the amp is pretty bullet proof, as long as the finals are in good shape. The original caps in the PS should be replaced at some point for safety and the fusable resistor power rating should increased. A replacement capacitor kit may be available from The Heathkit Shop. Be sure that the glass chimneys are present. Here again, condition of the rig and tubes go a long way in determining the price, but a bottom line of 800 and up is reasonable. If you find one and have it shipped, be prepared for sticker shock because the PS weighs a ton! Have the seller remove the finals and chimneys and package them separately and do not have them shipped in the same box with the amp. The tubes should preferably be shipped in a vertical configuration. Hope this helps. 73, John, W4AWM ---------------------------------------------------------------------- Submissions: drakelist@www.zerobeat.net Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
