| Author |
Message |
    
537
New member
Username: 537
Post Number: 1
Registered: 7-2014
| | Posted on Thursday, July 10, 2014 - 9:52 am: | 
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I have an opportunity to have a 667V. Is it possible to run the 667V with the 2995DX?
The 2995DX was copper tuned and purchased about 6 months ago.
I have heard of the amp switch mod for the 2995DX.
I have been looking for posts about this but was unable to find any.
Thanks in advance for any info |
537
New member
Username: 537
Post Number: 2
Registered: 7-2014
| | Posted on Friday, July 11, 2014 - 1:39 am: |
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Is this a bad question? |
537
New member
Username: 537
Post Number: 3
Registered: 7-2014
| | Posted on Friday, July 11, 2014 - 1:16 pm: |
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First time being registered here. I guess all the experienced people are to busy. |
Press_man
Advanced Member
Username: Press_man
Post Number: 788
Registered: 5-2008
| | Posted on Friday, July 11, 2014 - 6:01 pm: |
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537
You can run the two together, just be careful not to overdrive the 667. It (667) has a driver unlike the 500.
Make sure not to key more than 4w in and 12-16w pep or you could overdrive the 667 and possibly damage it.
73 Pressman
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537
New member
Username: 537
Post Number: 4
Registered: 7-2014
| | Posted on Friday, July 11, 2014 - 9:50 pm: |
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Thank you for the reply. Do you know how much swing this amp can handle for regular use ? I know it was not made to be used with my type of radio .
I have a MFJ-868B meter. It will measure PEAK and Average. When I have it on AVERAGE and adjust the radio's audio down , I can dead key below 4 watts and swing under 20. Is this tolerable for this amp on a regular basis.
Again, thank you. |
Dale
Senior Member
Username: Dale
Post Number: 2100
Registered: 12-2002
| | Posted on Saturday, July 12, 2014 - 10:51 am: |
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welcome to fourm 537. i got same mfj meter.
the2950 will overdrive that amp unless ya do
turn it down. an am mode 1-2 watts carrier
on ssb set it to 12-15 watts. on your meter
use the peak setting on ssb
dale/a.k.a.hotrod
cef426
cvc#64
454 [dx numbers]
38lsb
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Moonraker
Intermediate Member
Username: Moonraker
Post Number: 316
Registered: 3-2005
| | Posted on Sunday, August 03, 2014 - 11:11 am: |
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You are saying it swings 20 watts average or pep? Your amp won't live long being hit with 20 watts avg. The only way I would run a 2995 into a 667 is if I modified it to turn the internal amp off or I bypassed the driver in the 667.
I wouldn't drive it any harder than it takes to get 100-125 watt carrier and 400-500 pep, you may have to back the mic gain down to limit the pep power. Things just sound so much better when you don't push them. If you google search "amp switch 2995dx" you will find some talk about this mod. One place has some pictures. If I were in your shoes I'd trade the 667 off for a 500 or better yet sell it and buy an 8 pill like a sweet sixteen or tnt 1500. |
537
New member
Username: 537
Post Number: 5
Registered: 7-2014
| | Posted on Friday, June 07, 2019 - 2:17 pm: |
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Thank you, those numbers worked perfect. Now it;s time to build an 8 pill and see if i can drive it with the internal amp on. I don't think it's going to work, 2995dx sounds like •••• when you try to dead key single digits and swing to 150 PEP.
SORRY IT TOOK THIS LONG TO REPLY, EQUIPMENT IS EXPENSIVE AND TOOK TIME TO PURCHASE. |
Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 675
Registered: 10-2002
| | Posted on Monday, June 10, 2019 - 2:10 pm: |
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The 2995dx will exceed the drive for that amp. What you need is a sweet 16 that will handle the 2995dx with no problem. Of course you will need at least 150 amp power supply to run the sweet 16 for your base. Copper sells the sweet 16. By the way the sweet 16 will take a 100 watt swing. I have mine set for a 2 watt dead key and let it swing to 100 watt for the drive from the radio. |
